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2.05b thinking questions
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The sea urchin is a slow-moving creature with a distinctive look. Its numerous sharp spines serve as an adaption to deter many possible predators. The correct option to this question is D.
What further differences do urchins have that might serve as survival adaptations?They have evolved a sharp beaked mouth, resembling the beak of a parrot, as an adaptation to this physical limitation. Its incredible camouflage skills for hunting prey and avoiding predators is another adaption.Purple sea urchins have developed lengthy spines that can extend up to half the width of their bodies, making some of them 3–4 inches across. These spines are efficient in discouraging predators who might consider this pincushion-shaped mammal to be an unappealing meal source.For more information on urchins kindly visit to
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What is the main strategy birds use to maintain their body temperature?
A-using energy from food to keep their bodies warm
B- nesting in warm, sunny location
C- eating warm food on cold days
D- spending the day in the shade of trees
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Birds are endothermic, which means they generate their own body heat. They have a high metabolic rate and generate heat by breaking down food. This heat is then used to maintain their body temperature. To conserve this heat, birds have adaptations such as feathers, which provide insulation, and a high surface-to-volume ratio, which reduces heat loss. Birds can also fluff up their feathers to create air pockets that trap heat close to their bodies.
Biology 3.03 Lab: Dichotomous Key 1. I desperately need help.
Create a dichotomous key that identifies the 10 leaves on the Common Leaves sheet. Look closely at those leaf samples and devise a dichotomous key that helps you identify them. Be sure that your dichotomous key contains only pairs of statements about a single characteristic. For example, a pair of statements might be:
A. leaf margin smooth
B. leaf margin toothed
However, you should avoid pairs of statements that do not address the same characteristic. The following pair, for example, would not be very informative in your key:
A. leaf margin smooth
B. leaf type needle-like
As you develop your key, test it out with the 10 leaves provided on the Common Leaves sheet. When you've developed a key that identifies all 10 leaves, type your statements, “go tos,” and identifications, following the format in the example below. The example is based on this lesson’s dichotomous key for birds.
Once you have completed your dichotomous key, answer the two remaining questions. When you are finished, submit this assignment to your teacher by the due date for full credit.
1. Complete a dichotomous key for the 10 leaves on the Common Leaves sheet. The chart provided here allows for 11 pairs of statements. Depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.
2. Can more than one dichotomous key be developed to identify the same group of organisms? Explain. To answer this question, refer to this lesson’s dichotomous key for birds.
Answer:
Type your answer here.
3. If two different people use the same dichotomous key to identify the same organism, should they have different results? Explain.
Answer:
Type your answer here
I apologize if this makes no sense at all.
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The following could serve as a dichotomous key to identifying the ten leaves: Oval or elliptic in shape. linear or lanceolate in form. cordate or triangular in form. Orbicular or reniform leaves. Oval or spatulate leaves. smooth leaf margin
What does a dichotomous leaf key entail?An instrument that assists in the identification of different leaf species is a dichotomous key for leaves. By offering two different explanations for each observation, it aids in the classification of species.
What kind of plant has a dichotomous key, specifically?For instance, a dichotomous key in tree identification would inquire as to whether the tree has leaves or needles. If the tree has leaves, the key then sends the user down one set of questions; if the tree has needles, an other list of questions is presented.
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27. The difference between a monitoring task and a shadowing task is that
a. The shadowing task allows the experimenter to be certain that attention has been devoted to the attended message
b. The shadowing task is more difficult than the monitoring task
c. The shadowing task requires the subject to repeat the attended message, whereas the monitoring task does not
d.Both A and C
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Which of the following statements is TRUE of raising livestock?
Rearing animals on pastures has a lower ecological footprint and produces more animals than CAFOs can produce.
Rearing animals on pastures has a higher ecological footprint and also cannot produce the volume of animals that CAFOs can produce.
Rearing animals in CAFOs has a lower ecological footprint and produces a higher volume of animals than pasture-rearing can produce.
Rearing animals on pastures has a lower ecological footprint but cannot produce the volume of animals that CAFOs can produce.
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The following statement is accurate about growing livestock: "Rearing animals on pastures has a lower ecological footprint but cannot produce the volume of animals that CAFOs can produce."
Pasturing and CAFOs (concentrated animal feeding operations) are two strategies for raising livestock. (CAFOs). While CAFOs are intense operations where animals are confined to restricted places and fed a prescribed diet, pasture entails raising animals in broad fields where they can graze and move around freely.
Animals that are pastured may have a lower ecological footprint since there are fewer environmental problems with waste management, chemical use, and emissions, but it is not possible for them to produce as much as CAFOs do.
This is so because CAFOs are built to maximize output while minimizing costs, which can have detrimental effects on the environment. In the end, the manner of raising livestock is determined by a number of variables, such as animal welfare, sustainability, and efficiency.
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Write one sentence summarizing what the first article said about the topic. Begin yoursentence with these words: According to the USDA, . . . . . or, In the article "The GLASis Half Full," . . . . . )
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The article "The GLAS is Half Full" discusses the challenges and potential solutions for scaling up the Global Lake Ecological Observatory Network (GLEON) to study and understand the ecology of lakes worldwide.
What is lake ecology?Lake ecology is the study of the interactions and relationships between living organisms and their environment in freshwater lakes. This includes the physical, chemical, and biological factors that influence the distribution and abundance of plant and animal species in the lake, as well as the ecological processes that occur within the lake ecosystem, such as nutrient cycling, food webs, and energy flow. Lake ecology also involves the study of the impacts of human activities on lake ecosystems, such as pollution, habitat destruction, and climate change, and the development of management strategies to protect and conserve these valuable resources.
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why are junk DNA “not so useless after all?”
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Explanation:
Junk DNA, also known as non-coding DNA, was once thought to be useless or irrelevant because it does not contain instructions for making proteins, which are the building blocks of cells. However, recent research has shown that junk DNA plays important roles in regulating gene expression and controlling cellular processes.
For example, some regions of junk DNA contain regulatory elements called enhancers and silencers, which can activate or repress nearby genes. Other regions of junk DNA contain non-coding RNA molecules that can affect gene expression by interacting with other RNA or proteins. Junk DNA can also act as a buffer to protect important genes from mutations or chromosomal rearrangements.
Additionally, scientists have discovered that some types of junk DNA have been conserved throughout evolution, suggesting that they have important functions that have been maintained over millions of years. For example, transposable elements, which are mobile pieces of DNA that can move around the genome, have been shown to play important roles in gene regulation, genome organization, and evolution.
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Select the statements from the list below that accurately describe natural resources.
O A. Natural resources include only nonliving things.
O B. Obtaining natural resources has little or no impact the environment.
O C. Many natural resources exist in limited amounts.
O D. Some natural resources are being used much faster than they are being replenished.
O E. Past geologic processes, like plate tectonics, determined where many natural resources are
found today.
O F. The same natural resources can be found everywhere if one searches hard enough.
O G. Synthetic materials, like plastics, are not made from natural resources.
O H. Some natural resources take millions of years to form.
O L. Obtaining natural resources is easy.
O J. Finding, extracting, and using natural resources always have some costs of some kind.
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Statements C. Many natural resources exist in limited amounts, D. Some natural resources are being used much faster than they are being replenished, and H. Some natural resources take millions of years to form accurately describe natural resources.
What are natural resources?The expression natural resources refer to certain features of nature that allow us to be used with an objective, in particular, such as the water bodies to generate energy.
Therefore, with this data, we can see that natural resources can be used to generate energy or also to obtain food.
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How does “junk” DNA assist the process of transcription?
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Answer:
Noncoding DNA does not provide instructions for making proteins. Scientists once thought noncoding DNA was “junk,” with no known purpose
If the order of the heart is damaged which function of the heart will be affected 1st
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Answer: the aorta
Explanation: The aortic valve helps keep blood flowing in the correct direction through the heart. A damaged or diseased aortic valve can affect blood flow to the rest of the heart and body.
What was the colour of the leaf after it was boiled in ethanol?
Answers
Answer:
When a leaf is boiled in alcohol like ethanol, it helps to extract chlorophyll and help remove the green color of the leaves. After the removal of chlorophyll, the color of the leaf changes to white, and it is easy to observe the change in the color of iodine as starch gives a blue color to iodine.
Explanation:
If someone from another country were to ask you what is it like to be an American? how would you respond?
What do these images means on what is it like to be an American
• America flag
• bald eagle
• oak tree
• America bison
• statue of liberty
• mount Rushmore
• Lincoln Memorial
• great seal of the United States
• US capital
• white house
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Being an American, in my opinion, is living in the land of the free, where individuals may use their liberties without being ecosystem repressed.
What do the symbols used in America mean?The original thirteen colonies are represented by the thirteen stripes. There are as many stars on the flag as there are states in the Union. The formation of a new constellation is represented by stars on a blue background. Red represents bravery and tenacity.
What sort of American iconography is that?A symbol is more likely to be mocked, taken, or transformed the more beloved or well-known it is, whether it be Uncle Sam, the flag, the Statue of Liberty, the dollar sign, Mt. Rushmore, Rosie the Riveter, the Marines at Iwo Jima, or the bald eagle.
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What is the term for the high-density outdoor areas where cattle are kept in CAFOs?
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
feedlots
stalls
long barns
grazing pastures
Answers
Feedlots is the term for the high-density outdoor areas where cattle are kept in CAFOs.
What are feedlots ?A feedlot, also known as a feed yard, is a form of animal feeding operation (AFO) used in intensive animal farming, primarily for beef cattle, but also for swine, horses, sheep, turkeys, chickens, or ducks, previous to slaughter. In the United States, large cattle feedlots are known as concentrated animal feeding operations (CAFOs), while in Canada, they are known as intensive livestock operations (ILOs) or confined feeding operations (CFOs). They may house thousands of creatures in a variety of pens.
What are feeding operations ?Animal Feeding enterprises (AFOs) are agricultural enterprises that keep and rear animals in confined spaces.
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19. In the garden peas of one pair of alleles controls the height of the plant and a second pair of alleles controls flower colour. 'lhe allele for tall (T) is dominant to the allele for dwarf (t) and the allele for purple flower colour (P) is dominant to the allele for white (p).
a. A tall plant with purple flowers crossed with a dwarf plant with white flowers produced 50% tall, purple and 50% tall, white progeny. What is the genotype of the parents?
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The dwarf plant with white flowers has the genotype ttpp, whereas the tall plant with purple blooms has the genotype TtPp.
What are the two alleles that affect pea flower colour?For instance, in pea plants, one gene controls bloom colour. Alleles are several variations of the same gene. The two different alleles here are purple flowers and white flowers.
What pea plant gene is expressed in terms of plant height and pod shape?The pea plant's chromosome number 4 contains the genes that control plant height, flowering time, and pod shape. Out of these three genes, the two that determine pod morphology and plant height are linked since they are closely spaced on the chromosome.
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C. Give one word for the following.
1. a piece of stem that can grow into a new plant
Answers
Answer: Cutting
Explanation: Cuttings can be made from any part of the plant. Most frequently, however, either a stem or leaf is used. A stem cutting includes a piece of stem plus any attached leaves or buds. Thus, the stem cutting only needs to form new roots to be a complete, independent plant.
Which function is linear?
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The function that is linear is (a) x/8-2.
What is function?In mathematics, a function is a rule that maps each element (input) from a set called the domain to a unique element (output) from a set called the range. A function can be thought of as a machine that takes an input and produces an output based on the given rule. The input variable of a function is typically denoted by a symbol such as x, and the output variable is denoted by a symbol such as y. The function itself is denoted by a symbol such as f, and the rule that relates the input and output is usually expressed using algebraic or other mathematical expressions.
Here,
In option (a), the coefficient of x is 1/8, which means that for every 1 unit increase in x, y decreases by 1/8 units. This constant rate of change satisfies the definition of a linear function. To be linear, a function must have a constant rate of change, meaning that as the input variable (x) increases or decreases by a certain amount, the output variable (y) changes by a constant amount.
Options (b), (c), and (d) are not linear functions because they contain a term with x raised to the power of 2 or -1, which causes the rate of change to vary depending on the value of x. Therefore, their rates of change are not constant, and they cannot be linear functions.
To check whether a function is linear, you need to determine whether it satisfies the criteria of a linear function. A linear function is a function that has a constant rate of change, meaning that as x increases by a certain amount, y increases by a consistent multiple of that amount. Mathematically, a linear function can be written in the form:
y = mx + b
where m is the slope (rate of change) of the line, and b is the y-intercept (the point where the line intersects the y-axis).
To check whether a function is linear, you can plot its graph and see if it forms a straight line. If the graph is a straight line, then the function is linear. However, if the graph is curved, then the function is not linear.
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How are speciation and reproductive isolation similar and different?
Answers
Answer:
Look below
Explanation:
Reproductive isolation represents a breakdown in the ability to reproduce successfully with sexual partners of another type of organism, and speciation requires a build up of reproductive isolation between diverging types of organism until gene flow is sufficiently rare or ineffective that the entities are considered
3. If cells are placed in a strong salt (hypertonic) solution, water will
3% salt
1% salt
a. pass from the salt solution to the cells
b. pass from the cells to the salt solution
c. stay in the cell
d. pass back and forth
See diagram below.
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Answer:
The correct answer is b. pass from the cells to the salt solution.
Explanation:
When cells are placed in a hypertonic solution, such as a strong salt solution, the concentration of solutes outside the cell is higher than the concentration inside the cell. This creates a concentration gradient that drives water out of the cell in an attempt to balance the concentration of solutes.
As a result, water will pass from the cells to the salt solution, causing the cells to shrink and become dehydrated. This process is known as crenation.
In the given scenario, both the 3% and 1% salt solutions are hypotonic to the strong salt solution, meaning that they have a lower concentration of solutes than the strong salt solution. Therefore, water would also pass from the cells to these solutions, although to a lesser extent than in the strong salt solution.
Cyanobacteria, once referred to as blue-green algae, has a fossil record that dates back nearly 3.5 billion years and is among the oldest fossils known. The cyanobacteria/ blue-green algae had cell walls and were photosynthetic. A few hundred years ago, this organism was classified as a plant, then as a protist. Today it is classified in the Eubacteria because it
A) is the ancestor of land plants.is the ancestor of land plants.
B) is photosynthetic.is photosynthetic.
C) has cellulose cell walls and chloroplasts.has cellulose cell walls and chloroplasts.
D) is known to be prokaryotic.
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Cyanobacteria, once referred to as blue-green algae, has a fossil record that dates back nearly 3.5 billion years and is among the oldest fossils known. Today it is classified in the Eubacteria because it is known to be prokaryotic.. Option D is the answer.
Cyanobacteria and prokaryotesCyanobacteria are classified in the Eubacteria because they are prokaryotic organisms. Although they are photosynthetic and have cell walls, they are not classified as plants or protists because they lack many of the complex cellular structures and processes found in eukaryotic organisms. Instead, they are classified in the domain Bacteria, which includes all prokaryotic organisms.
Prokaryotes are unicellular microorganisms that lack a well-defined nucleus and other membrane-bound organelles. They are the simplest and most ancient form of life on Earth, and include the bacteria and archaea. Prokaryotic cells are typically smaller and simpler in structure than eukaryotic cells, which are found in plants, animals, fungi, and protists.
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unemploy 3.2 Mention FOUR negative impacts of unemployment to the quality of life of an individual. 3.3 Discuss FOUR reasons why not following changes in the job market may result in unemployment 3.4 Explain why entrepreneurship may be a solution to the high levels of unemployment in South Africa. 3.5 Recommend THREE ways in which the youth could use entrepreneurship to benefit their community. In your answer, also indicate how that could bring about positive change in the life of the community. (4x1) (4) (4x2) (8) (2x2) (4) (3x3) (9) 30 Sub-total
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Answer:
Explanation:
3.2 Four negative impacts of unemployment on an individual's quality of life include:
Financial difficulties: Unemployment can result in financial strain, as individuals are unable to earn income and may struggle to pay for basic needs such as food, housing, and healthcare.
Social isolation: Being unemployed can lead to social isolation, as individuals may feel disconnected from their communities or experience shame or stigma due to their lack of employment.
Mental health problems: Unemployment can be stressful and can lead to mental health problems such as depression, anxiety, and low self-esteem.
Reduced life satisfaction: Unemployment can negatively impact an individual's overall life satisfaction, as they may feel unfulfilled and lack a sense of purpose.
3.3 Four reasons why not following changes in the job market may result in unemployment are:
Technological advancements: The job market is constantly evolving, and new technologies can render certain jobs obsolete. Failure to keep up with these changes can result in a lack of skills that are in demand, leading to unemployment.
Economic shifts: Economic conditions can change rapidly, and failure to anticipate these shifts can result in job losses as companies adjust their operations in response to changes in the market.
Globalization: Increased globalization means that competition for jobs is no longer limited to local or national markets. Failure to adapt to the demands of the global market can result in unemployment.
Lack of education or training: Without ongoing education and training, individuals may lack the necessary skills to compete in the job market. Failure to invest in education and training can lead to unemployment or underemployment.
3.4 Entrepreneurship may be a solution to high levels of unemployment in South Africa because it can create jobs and stimulate economic growth. By starting their own businesses, individuals can create jobs for themselves and for others. Entrepreneurship can also contribute to innovation and economic development, which can create new opportunities for employment. Additionally, entrepreneurship can help to address social and economic challenges in South Africa by providing solutions to problems in areas such as healthcare, education, and poverty.
3.5 Three ways in which youth could use entrepreneurship to benefit their community and bring about positive change include:
Starting a social enterprise: A social enterprise is a business that aims to address a social or environmental issue while also generating profit. By starting a social enterprise, youth can address issues in their community while creating jobs and contributing to economic growth.
Creating a tech startup: Technology startups can be a great way for youth to leverage their skills and knowledge to create innovative solutions to problems in their community. By creating a tech startup, youth can contribute to economic growth and job creation.
Developing a community-focused business: By starting a business that is focused on serving the needs of their community, youth can create jobs and contribute to economic development while also addressing issues such as poverty, education, or healthcare. For example, a youth-led business that provides affordable healthcare services to underserved communities could create jobs while also improving the health of the community.
In summary, entrepreneurship can be a solution to unemployment, and youth can use entrepreneurship to benefit their community by starting social enterprises, tech startups, or community-focused businesses. By doing so, they can create jobs, contribute to economic growth, and address social and economic challenges in their community.
The four negative impacts of unemployment on the quality of life are financial insecurity, social isolation, loss of self-esteem, and health issues. Four reasons for not following changes are lack of necessary skills, competition, etc. Three ways in which the youth could use entrepreneurship Providing essential services, Supporting local businesses, etc.
What are unemployment and entrepreneurship?Unemployment can lead to a lack of income, making it difficult for individuals to meet their basic needs such as food, housing, and healthcare. It can also lead to social isolation and negatively impact an individual's self-esteem and sense of worth, leading to feelings of hopelessness and depression.
Failure to keep up with changes in the job market can lead to a lack of necessary skills, making it difficult for individuals to find employment in their field, and economic downturns can also result in job losses as companies may be forced to cut costs and downsize their workforce. Entrepreneurship may be a solution to the high levels of unemployment in South Africa because it provides individuals with the opportunity to create their own jobs and contribute to the economy. By engaging in entrepreneurship, youth can bring about positive change in their community by creating jobs, supporting local businesses, etc.
Hence, four negative impacts of unemployment on the quality of life are financial insecurity, social isolation, loss of self-esteem, and health issues. Four reasons for not following changes are lack of necessary skills, competition, etc. Three ways in which the youth could use entrepreneurship Providing essential services, Supporting local businesses, etc.
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The _____ refers to the overarching 1930s legislation that deals with many aspects of the production and sale of farm-raised commodity crops.
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
Federal Farm Loan Act
Agricultural Act
Sarbanes-Oxley Act
U.S. Farm Bill
Answers
The correct answer is the "U.S. Farm Bill."
What is U.S farm bill?
The U.S. Farm Bill is a comprehensive legislation that is passed by the United States Congress every five to seven years to address a wide range of issues related to agriculture, rural development, conservation, and nutrition. The first Farm Bill was enacted in 1933 during the Great Depression, and since then, it has been amended and revised numerous times to reflect the changing needs of the agricultural sector.
The Farm Bill is a significant piece of legislation that impacts the lives of millions of people across the United States, including farmers, ranchers, consumers, and rural communities. It provides funding for a range of programs, such as crop insurance, conservation, agricultural research, rural development, and nutrition assistance programs, including the Supplemental Nutrition Assistance Program (SNAP).
The Farm Bill also includes provisions related to the production and sale of commodity crops, such as wheat, corn, soybeans, and cotton. These provisions include subsidies and price supports that aim to stabilize commodity prices, promote agricultural production, and ensure a reliable supply of food and fiber.
In conclusion, the U.S. Farm Bill is a crucial piece of legislation that provides support to the agricultural sector and addresses a wide range of issues related to rural development, conservation, and nutrition. Its provisions related to commodity crops are just one of the many aspects of this comprehensive legislation.
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If black fur is dominant over white fur, how would heterozygous parents breed a grey fur offspring? (Many Generations can be used)
Answers
In mice, the alleles for white fur (FW) and black fur (FB) co-dominate. When both alleles are present, the mice will then have black or white speckled fur.
What is an example of heterozygosity?You have a genetic mutation for that gene if the two methods differ from one another. For instance, having one gene for red hair or one allele for brown hair could indicate that you are heterozygous for hair color. The expression of certain features is influenced by the interaction between the two alleles.
How do homozygous and heterozygous differ?Each gene has two alleles, or variations, in each of us. When two identical copies of a gene are present, you are said to be homozygous for that gene. It contrasts with a heterozygous genotype, in which the alleles are distinct.
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Which layers of sedimentary rock at Grand Staircase Escalante National Monument do you think are the oldest? Use evidence to support your claim.
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The oldest layers of the sedimentary rock at Grand Staircase Escalante National Monument is the chocolate layer.
Chocolate layer of sedimentary rock at Grand Staircase Escalante National MonumentIt is the oldest layer because it was the first layer that was formed. It was formed between 200 to 225 million years ago. It was made up of kaibab limestone and served as bottom layer of the Grand staircase.
The Grand staircase is made up of five layers and they are listed from youngest to oldest below.
Pink Cliffs.Grey Cliffs.White Cliffs.Vermilion Cliffs.Chocolate Cliffs.The Grand staircase is made up of sedimentary rock and it is of different colorful layers.
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Match them up please
Answers
Answer:
a. Environment - 3. all the conditions surrounding any living organism - the living things and non-living things
b. Habitat - 5. a place where plants and animals live, for example, a pond
c. Population - 1. all the members of a single species living in a habitat
d. Community - 4. a community of animals, plants, and microorganisms together with the habitat where they live
e. Ecosystem - 2. all the populations of different organisms living together in a habitat
Answer:
Let me explain :D
Explanation:
A: Environment will match with #3 because the conditions means that the
B: Habitat would match with #5 because it is where a place a single or several animal(s) lives. (Like its home)
C: Population would match with #1 because it is where all the single species live together.
D: Community will match up with #2 because it is all the different animals living in a habitat, which is a community of animals.
E: Ecosystem will match with #4 because it says where animals, micro-organisms, and plants live together, which means unlike habitat, there are several species living together.
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(Fastest I have answered somebody, which is kind of concerning | > |)
which one of the following is not a characteristic of living organisms?
A) the ability to grow and develop
B) the ability to maintain homeostasis
C) the ability to perform photosynthesis
D) the ability to reproduce
Answers
Answer:
C
Explanation:
Humans can't perform photosynthesis, but humans are definitely living organisms
C
Explanation:
I choose C because a living organism is not a plant that grows
The diagram below shows an ecological pyramid. Which statement best describes why the top segment containing the owl is smaller than the bottom
segment containing plants?
A. Owl are much smaller organisms than blades of grass
B. Grass needs more energy to grow than owls
C. The owls need more space than grass
D. There is less biomass of owls than there is of grass
Answers
A. Owl are much smaller organisms than blades of grass. This is the best explanation because the size of the segments in the ecological pyramid is determined by the size of the organisms they represent.
What is ecological pyramid?An ecological pyramid is a graphical representation of the biomass or abundance of organisms in different trophic levels of a food chain in an ecosystem. It is used to show the energy flow through different trophic levels and how energy is lost through the ecosystem. The base of the pyramid consists of the primary producers, which are usually plants that use the energy of the sun to make their own food. The primary consumers, which are typically herbivores, come next. Further up the pyramid are the secondary consumers, which are carnivores, and at the top are the tertiary consumers, which are typically apex predators.
Since owls are much smaller than blades of grass, the segment representing owls is much smaller.
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modified viruses can be used to introduced to modify genes into human cells true or false 
Answers
Answer:
True. Modified viruses can be used as a tool to introduce desired genes or modifications in human cells, a technique known as gene therapy. However, this is a highly specialized field and must be performed under strict laboratory conditions by trained professionals to ensure safety and efficacy.
Describe a food chain in detail. Use the teacher notes to help you. Must be 2-4 sentences with a complete description of a food chain and the types of organisms in that food chain. Please check spelling and grammar before submission.
Answers
Answer: A food chain is a succession of organisms, with each organism feeding on the one below it in the chain.
For example, a simple food chain in a forest ecosystem might start with the grasshopper eating grass. The grasshopper is then eaten by a frog and the frog is eaten by a snake. In this food chain, the grass is the producer, the grasshopper is the primary consumer, the frog is the secondary consumer, and the snake is the tertiary consumer. Every organism in the food chain depends on the underlying energy, and energy is transferred from one organism to another throughout the food chain.
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Which of the following terms describes a type of radiation that reaches the Earth from the Sun?
Answers
There are three types of radiation that reach the earth from the sun there is direct solar radiation, diffuser solar radiation, and reflected solar radiation.
the description of types of radiation:
Direct solar radiation:
The radiation rays or beam which reach the earth's surface without being diffused is called direct solar radiation. the sum of direct solar radiation and diffused solar radiation is called global radiation.
direct solar radiation can be decreased due to atmospheric conditions the radiation can be reduced to 10% on a clear day, or dry day and can be 100% on cloudy or thick days.
Diffuser solar radiation:
The radiation ray or beam reaches the earth's surface after passing through multiple deviations in its trajectory. in this, the radiation of the sun is scattered by the atmosphere constituents or by the surface of the earth
Reflected solar radiation:
The radiation in which the beam or rays of light is reflected back by the earth's surface in a phenomenon is called reflected solar radiation
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Is the red blood cell the only true cell in the human body
Answers
Answer:no
Explanation: