Answer:
The human heart is a pump. It pumps blood around the body at different speeds and at different pressures according go the body's needs. It can do this because the wall of the heart is made from cardiac muscle. Blood is moved through the heart by a series of contractions and relaxations of cardiac muscle in the walls of the four chambers.
Help I am stuck on this question
All of an organism's characteristics are inheritable which evolves over millions of years. An example of this is the modern day horse's foot.
What is Evolution?This is referred to as the change in the heritable characteristics of biological populations over successive generations and it occurs as a result of the changing environmental conditions which boost the chances of survival of organisms.
This leads to the prevention of the extinction of species in the ecosystem and an example is modern day horse's foot in which they lost their side toes and developed a single hoof as a result of them needing to cover more ground for grazing.
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 a model of a change to the double strand of DNA molecule is shown here based on the illustration what describes the type of change and the effects of the change in the model of DNA select all answer choices that apply 
search sailesh xettri on messenger
Explanation:
bike pic guy
HELP LIMITED TIME ASAP!!!!!!!!!!
Using electricity sparingly in your home is beneficial for the
environment because it:
Select one:
1, increases the amount of greenhouse gases emitted into the atmosphere.
2, increases the rate of plant growth
3, increases levels of oxygen in the atmosphere.
4, reduces the amount of greenhouse gases emitted into the atmosphere.
Your requirement for electricity decreases as your home's energy efficiency rises, reducing your dependence on carbon-intensive power plants, and reducing the number of greenhouse gases emitted into the atmosphere, hence option 4 is correct.
How does electricity affect the greenhouse?This lowers the plant's demand from your house, which helps the environment by lowering carbon dioxide emissions and lessening atmospheric emissions of greenhouse gases.
This rise is the result of the air's carbon and oxygen being combined to create CO2 during the burning of coal or oil.
Therefore, greenhouse gas concentrations have increased due to human activity, hence option 4 is correct.
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Any physical or behavioral characteristic that an organism has developed
over time is
A) Adaptation
B) Evolution
C) Natural Selection
D) Species
Answer:
A) Adaptation
Explanation:
What was the diploid number for this individual
Base pair
Nucleus
Chromosome
Gene
From smallest to biggest
Answer:
Base pair - smallest
Gene
Chromosome
Nucleus - largest
Which change would cause an increase in the size of a population?
Answer:It would be a migration
Explanation:
The answer is migration. It is described as the movement of people from place to place and permanently at the new location.
Similarly, migration will be seen growing old in prosperous areas and boom it in bad ones. Most nations and areas experiencing populace lower accomplish that specifically because of natural change (the distinction among births and deaths), at the same time as areas which advantage populace accomplish that specifically because of extra-migration.
What are the effects of migration in the area? Migration has an effect on the populace of the 2 unique areas. It will increase the populace of the place (new place), in which human beings migrate on the lookout for process possibilities, and reduce the populace of the region in which human beings migrate from. The charge of populace boom is the charge of herbal boom blended with the results of migration. Thus the excessive charge of the herbal boom may be offset via way of means of a massive out-migration, and a low charge of the herbal boom may be countered via way of means of an excessive stage of in-migration.Hence clear that migration change would cause an increase in the size of a population.
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10. Which of the following organelles is involved in the
digestion of other worn-out organelles?
A. Lysosome
B. Endosome
C. Golgi apparatus
D. Rough endoplasmic reticulum
Answer:
Lysosome. A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts.
Answer:
A. Lysosome
Explanation:
A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts.
Before the beginning of the Industrial Revolution, most peppered moths found in and around Manchester, England, exhibited light-colored wings speckled with black. After the Industrial Revolution, peppered moths with dark wings became predominant in the area.
Answer:
B : Evolution
What major explanation did Charles Darwin provide?
A) The idea of speciation was first proposed by him.
B) He explained how DNA is passed on but did not have evidence of it occurring.
C) He was the first to provide an explanation of evolution supported by evidence.
D) He explained how turtles adapted to their environment.
Answer:
C) He was the first to provide an explanation of evolution supported by evidence.
Answer:
C) He was the first to provide an explanation of evolution supported by evidence.
Explanation: Took the test.
Which of these choices is the main purpose of human culture?
A. To build museums and theaters for the public
B. To survive by working together
c. To make others think the same way we do
D. To get along with people in other societies
Answer:
Which of these choices is the main purpose of human culture?
A. To build museums and theaters for the public
B. To survive by working together
c. To make others think the same way we do
D. To get along with people in other societies
answer:
D. To get along with people in other societies
The main purpose of the human culture is to get along with people in other societies. Every culture is developed on the aim to mold people with good values. Therefore, option D is correct.
What are the impacts of human cultures ?Humans are incredibly adept at adjusting to new settings through a complex combination of cultural and genetic changes. Yet, mechanistically, we understand nothing about these activities.
A person's values, beliefs, attitude, appreciation of the arts and sciences, modalities of perception, thoughts, and activities all have an impact on their culture.
In this sense, culture describes how a person interacts with their surroundings, how they behave, and how their thoughts and perceptions are shaped, all of which have an impact on how well they get along with their surroundings.
With a workforce that was less diverse, things were much easier to manage. However, globalization has completely changed the situation, emphasizing the cultural variations inside the firm that have an impact on its performance.
Hence, our culture must teach us to get along with people in other societies as well. Thus, option D is correct.
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Fill in the blank with the best choice. "Continued labor trouble contributes to poor
a. Morale
b. Morel
c. Moral
Answer:
a. Morale
Explanation:
A. Makes the most logical since to me.
How easy do you think it is to change an area’s climate? Explain your reasoning in at least 3 sentences.
Answer:
I don't think it is easy to change an area's climate because it requires large-scale interventions that can take a long time to implement. Additionally, the climate is influenced by many factors, including the Earth's orbit, ocean currents, and the amount of greenhouse gases in the atmosphere. Finally, the climate is a complex system and it is difficult to predict how changes to one part of the system will affect the rest of it.
Explanation:
Question 6(Multiple Choice Worth 3 points)
(04.01 MC)
Starting with the European settlers, humans have introduced earthworms from Europe and Asia into North American forests. These introductions continue through the transport of soil that contains non-native earthworms, such as during construction and through the release of non-native earthworms used for fishing. The effects of non-native earthworms are especially large in forests that did not have any native earthworms. For example, forests of the Great Lakes region did not previously have earthworms until humans introduced them. When non-native earthworms are introduced, the thick layer of leaves, known as leaf litter, covering the ground disappears quickly, thereby altering biogeochemical cycles.
Which of the following correctly traces a nutrient pathway in a Great Lakes forest that is invaded with non-native earthworms?
trees → leaf litter → earthworm → atmosphere
leaf litter → earthworm → soil → trees
bird → earthworm → soil → trees
earthworm → fungi → leaf litter → trees
The correct trace nutrient pathway in a Great Lakes forest that is invaded with non-native earthworms is leaf litter → earthworm → soil → trees. The correct option is B.
What is a nutrient pathway?When there is an oversupply of food, nutrient-sensing pathways activate anabolism and storage, and when there is a shortage of food, homeostatic mechanisms including the mobilization of internal stores via mechanisms like autophagy are triggered.
Human metabolic illnesses frequently exhibit altered nutrient-sensing mechanisms.
Therefore, the correct option is B, leaf litter → earthworm → soil → trees.
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Answer:C
Explanation:
makes sense
Discus four
importance of applications software
Answer:
1.Application software help the end users perform single or multiple tasks.
2.All the useful work are done by application software.
3.It is a word processing software.
4.It control and manage the operations of the computer.
Explanation:
It can be used for general purpose as well as specific function.
Which statement describes an environmental consequence of sustainable land use?
Building a park instead of more housing may be unpopular with residents.
When common lands are protected, land degradation slowly disappears.
Residents praise community leaders for preserving land for a new park.
If common land use is restricted, it can slow down the economy.
The statement that describes an environmental consequence of sustainable land use is that If common land use is restricted, it can slow down the economy. That is option D.
What is sustainable land use?Sustainable land use ensures the fair and balanced distribution of land, water, biodiversity and other environmental resources among the various competing demands to meet current and future human needs.
Therefore, although the practice of sustainable land use is important, it can slow down the economy of the country as there would be decrease in competition in land space used for agricultural production.
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HELP PLISS
The existence of which group of organisms spans the shortest geologic time?
A)
birds
B)
humans
C)
dinosaurs
D)
placoderm fish
Answer:
Humans
Explanation: Human existence is new compared to all the other options spanning only a few years. We have not existed longer than any of the other species listed yet which may change in the far future.
The existence of which group of organisms spans the shortest geologic time is option b. humans.
What is the geologic time?It is the time that should be occupied via the geologic earth history. It started from 4.0 billion to 2.5 billion years ago.
Here the human should be existence as compared to the other options.
hence, The existence of which group of organisms spans the shortest geologic time is option b. humans.
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Definition: This is a segment of DNA on the chromosome that is coded for a particular trait.
Example: Color of flower in pea plants.
Help
Answer:
I think it's Gene, maybe!
6. Understanding of the cell has changed over
time. Which explains why this has occurred?
A New scientific discoveries lead to new theories.
B Theories are redesigned every ten years as a necessity.
C The constantly evolving universe requires new theories to describe it.
D Larger number of scientists have opinions that must be incorporated.
Answer:
A
Explanation:
Cell theory was first formulated by Schwann and Schleiden, but because of new and advanced technology some statements were replaced and some are added.
Use the drop-down menus to identify which bacterial shape applies.
✔ Bacillus
A (rod-shaped)
✔ Spirillum
B (spiral-shaped)
✔ coccus
C (spherical)
coccus
Staph infection
Spirillum
Cholera
Bacillus
E. coli
(An5wers Included)
Answer:
Use the drop-down menus to identify which bacterial shape applies.
✔ Bacillus
A (rod-shaped)
✔ Spirillum
B (spiral-shaped)
✔ coccus
C (spherical)
✔ coccus
Staph infection
✔ Spirillum
Cholera
✔ Bacillus
E. coli
Bacterial forms are of great importance in determining survival, pathogenicity, and virulence.
What is a Bacterium?Bacteria are single-celled organisms that do not have a defined nucleus or membranous organelles. They can be classified according to their shape, with the most common shapes being
SphericalRod and spiral.What are The Bacterial forms? Bacillus = A (rod-shaped)Spirillum = B (spiral-shaped)coccus = C (spherical)Spirillum = CholeraBacillus = E. coliWith this information, we can conclude that the bacterium forms say a lot about your life form.
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Which factor is most likely to cause a population's growth rate to decrease?
increase in birthrate
improvements in medical care
decrease in death rate
O high immigration out of the area
Answer:
it's the last one, everything else would be an increase in the population
Match the type of tectonic plate boundary to the geological feature or effect it is commonly associated with them.
Although it is an underground formation, It is the longest mountain range in the world = Oceanic-oceanic divergence.
he Himalayas lie between the Indo-Gangetic Plain of northern India and the Tibetan Plateau = Continental- continetal convergence.
he Himalayas lie between the Indo-Gangetic Plain of northern India and the Tibetan Plateau = Continental- continetal convergence.
What is continental?Continental creates ground-breaking products and services for the connected, sustainable movement of people and their goods. The technology business, which was established in 1871, provides safe, effective, intelligent, and reasonably priced solutions for machines, traffic, and transportation. Any of the numerous large landmasses is a continent. Rather than using any strict criteria, continents are typically identified by convention.
Because of this, there are typically seven or as few as four geographical regions considered to be continents. Continental creates ground-breaking products and services for the connected, sustainable movement of people and their goods. (usually with the first letter capitalized) of or pertaining to the European continent, to Europeans, or to European practices and values.
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This is an example of radioactive isotopes in fossils
Carbon-14 is an example of radioactive isotope in fossils.
What are radioactive isotopes?Radioactive isotopes can be used to date fossils, as well as rocks and other geologic materials. The technique is called radiometric dating, and it involves measuring the levels of isotopes in a sample. Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons in the nucleus. Some isotopes, known as radioactive isotopes, have unstable nuclei that emit particles and energy over time in a process called radioactive decay.
Radioactive isotopes such as Potassium-Argon and Uranium-Lead dating can also be used to date fossils and rocks.
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Biology please help grade 11th
Mutation may or may not affect the phenotype.
Cause: Point Mutation
Effect A: Altered Splice Site
Effect B: Lack of Regulation
Effect C: No Change
Effect D: Non-Coding Regions
Effect E: Premature Stop Codon
What is Mutation?
Mutation is the process of changing the genetic material of an organism. It is the basic process of evolution, and it can occur naturally or be artificially induced. Mutations can be beneficial, neutral, or harmful, and they can affect a single gene, multiple genes, or the entire genome.
A mutation can affect the phenotype, or visible characteristics, of an organism by changing the expression of a gene or by altering the structure of a gene product. Some mutations can have severe effects on an organism’s phenotype, while other mutations may have no noticeable effect. In some cases, a mutation may lead to a change in an organism’s phenotype without changing the underlying genetic code. For example, a mutation in a gene that regulates the expression of other genes may lead to a change in the expression of those other genes, resulting in a change to the phenotype.
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THINKING QUESTION
1. Isoamyl acetate, sometimes
popularly called "banana oil" is
one of the compounds responsible
for banana flavor. If an enzyme
called "bananase" makes Isoamy!
acetate from isoamyl alcohol,
could you make a strawberry taste
like a banana by putting the DNA
segment for the enzyme
"bananase" into a strawberry?
Answer:
The correct answer is - no, you can not make a strawberry taste like a banana by putting the DNA segment for the enzyme "bananase" into a strawberry.
Explanation:
Enzymes are highly specific and they catalyze a particular reaction by making enzyme-substrate complex. In this case, Bananase also forms an enzyme-substrate complex with isoamyl alcohol substrate to convert into isoamyl acetate.
in strawberry the particular substrate isoamyl alcohol is not present and the other substrate that are present such as citric acid or malic acid can not bind to enzyme to convert into isoamyl acetate
A student pours a spoonful of dirt into a cup of water. The water and dirt are stirred together. The water turns a light brown color. Some dark pieces float to the top of the cup and another dark layer forms on the bottom of the cup. Which statement BEST describes the contents of the cup?
The statements described the contents of the cup is that it is a mixture.
What is the cup?Let us notice that the question that we have here is incomplete but to the best of my ability I would try to explain the concept that is involved here. We know that a mixture would imply any combination of the substances that are not chemically combined together.
We can see that both the water and the dirt are independent substances. They do not mix up at all when we put the dirt in the water. They would continue to be separate from each other although they have been mixed together.
Hence, we can see that putting the dirt and the water in the same place would only lead to the production of a mixture of substances as we have described in the answer stated here.
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HELP QUICK PLEASE
Select the hotspot that shows metaphase.
The prominent examples of marine ecosystems include the
a
Deep ocean
b Intertidal zone
c Photic zone of the ocean
d All of the above
Ck12
Answer:
I think the awnser is D. Hope it helps
To reproduce, female elephants produce eggs and male elephants produce sperm offspring are produced by the fusion of an egg with sperm cell. Which statement is true about the offspring
Answer:
that females have eggs and males have sperm cells
Answer:
Explanation:
The first part seems right.
Based on the word parts of PRImary, SECONDary, TERTIary, and QUATERnary consumer, what label would you provide for the alligator? Explain.
3. If the amount of energy from the sun in the food chain from #1 equals 2500 units, calculate the energy available at each level of the energy pyramid for the producer and each of the consumers that follow. Use the energy pyramid on the front page to guide you
2. Alligators would be considered as a Quaternary consumer as they are in the top of the food chain, meaning that nothing else could prey upon them.
3. There are 5 factors in the Energy Pyramid: Producer, Primary Consumer, Secondary Consumer, Primary Consumer, Tertiary Consumer and Quaternary consumer. As producers are the first and main factors that receive energy from the sun, they would receive 100% of energy. This energy is decreased by 10% as it is consumed by more and more consumers. Therefore: Producer would receive 2500 units of energy, Primary Consumer would receive 250, Secondary Consumer would receive 250, Primary Consumer would receive 225, Tertiary Consumer would receive 202.5 and Quaternary consumer would receive 182.25 of energy.
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Based on the word parts, the label for an alligator would be "tertiary consumer," and at the tertiary consumer level (alligator), there would be approximately 2.5 units of energy available from the original 2500 units of energy from the sun.
What is an energy pyramid?The energy pyramid represents the flow of energy in an ecosystem from the sun to the different levels of consumers. At the base of the pyramid are producers, such as plants, that use the energy from the sun to produce food through photosynthesis. The next level consists of primary consumers, such as herbivores, that eat the producers. The next level consists of secondary consumers, such as carnivores that eat the primary consumers, and so on. Each level of the pyramid represents a different trophic level in the food chain, and the energy available at each level decreases as we move up the pyramid. Here , Producer level: 2500 units, so Primary consumer level: 10% of 2500 units = 250 units Secondary consumer level: 10% of 250 units = 25 units; and tertiary consumer level (alligator): 10% of 25 units = 2.5 units.
Hence, based on the word parts, the label for an alligator would be "tertiary consumer," and at the tertiary consumer level (alligator), there would be approximately 2.5 units of energy available from the original 2500 units of energy from the sun.
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