Answer:
There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead
Explanation:
This is an example of a squirrel population
An example of a squirrel population would be a group of Eastern Gray Squirrels (Sciurus carolinensis) living in a city park.
What is an examples of squirrel population?An example of a squirrel population would be a group of Eastern Gray Squirrels (Sciurus carolinensis) living in a city park. Scientists may study the population dynamics and ecology of this group of squirrels by conducting surveys and capturing and marking individual squirrels to track them over time. This can provide information on their survival rates, reproduction, and movements, which can be used to estimate the size and growth rate of the population, as well as identify any factors that may be impacting the population, such as disease, predation, or habitat loss.
Additionally, scientists may also conduct transects, or study the population density, distribution of the squirrels in a specific area and the food resources that are available to them, as well as monitor the environmental factors that might affect the population growth.
Another example could be a population of Fox Squirrels (Sciurus niger) living in a rural forest. Here, researchers may study the impacts of logging and fragmentation on their population dynamics and genetic diversity, and understand how these animals are utilizing different food resources throughout the year.
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When nutrients leave the digestive system and move to the circulatory system it is called...
Adjunction
Villi
Absorption
epithelial
the surface area to volume ratio determines the rate of transfer across the cell membrane.
what has the best transfer rate?
A: Smaller cells with a high surface area to volume ratio have the best transfer rates
B: Medium sized cells are the best for transfer rates
Answer:the answer is a
Explanation: I just answered it
Smaller cells with a high surface area to volume ratio have the best transfer rates, hence option A is correct.
What is cell membrane?All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external environment. A semipermeable lipid bilayer makes up the cell membrane.
The movement of materials into and out of the cell is controlled by the cell membrane.
A small volume is better in terms of efficiency of transporting molecules throughout the cell, but a large surface area is better for transporting molecules across the cell membrane.
A surface area to volume ratio regulates cell size because as cells become larger, they have less surface area relative to their size.
Therefore, smaller cells with a high surface area to volume ratio have the best transfer rates, hence option A is correct.
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where can you plant a mango tree
•hill
•slope
•valley
•plain
HELP PLSSSS
Explain the effects of the use of antibodies in the control of a disease?????
Answer:
Antibodies have three main functions: 1) Antibodies are secreted into the blood and mucosa, where they bind to and inactivate foreign substances such as pathogens and toxins (neutralization). 2) Antibodies activate the complement system to destroy bacterial cells by lysis (punching holes in the cell wall).
Each day the moon rises later by approximately one hour because the:
A)Earth revolves round the Sun in 365 days.
B)Earth rotates 360 degrees on its axis in twenty-four hours.
Moon rotates 360 degrees on its own axis in twenty seven days
D)Moon's position shifts everyday due to its revolution around the Earth.
Answer:
D
Explanation:
The moon moves to the East each day (about 15⁰) in its orbit around the Earth, which takes a total of 27.3 days. The moons orbit around Earth is a complete circle, which is 360⁰. It takes approximately 1 hour each day for the Earth to catch up to the moon, delaying it's rising by 1 hour.
Matching - select the best answer and place it next to questions below.
•Meristematic Tissue
•Permanent Tissue
•Genus, Species
•Chlorophyll
•Lenticel
•Node
•Monocot
•Dicot
•Simple Fruit
•Aggregate Fruit
•Root Hair
•Dormancy
•Totipotency
Hesperidium
Perfect Flower
Protoplasm
Pepo
Parthenocarpy
Leaf Vein
Adaptation
.
22.
Allows for plant survival in various climates
23.
Process where a plant produces a seed without fertilization
24.
Found in the bark of woody trees; allows for gas exchange
25..
Has male and female structures on one flower
26.
Found at the root tip; cell division still occurs here
27.
Extension of an epidermal cell
28.
Must be present for photosynthesis to occur
29.
Makes up the scientific name of a plant
30.
Includes the phloem and xylem
31.
Found in stems, leaves, flowers; cell division does not occur
32.
Derived from one ovary of a single flower
33.
Has a taproot system
34.
Time when the seed is not growing; period of rest
35.
Location on the stem where growth occurs
36.
Fleshy fruit that consists of a leathery rind
37.
Fleshy fruit that contains fragrant oil and leathery skins
38.
Derived from several ovaries of a single flower
39.
Cell characteristic that allows them to become any type of cell
40.
Living parts of a cell
Answer:
Hair root is 27 dicot is 33
What role do neurons serve within the nervous system? Why is it so important?
Answer:
Neurons are electrically excitable cells that transmit information throughout the nervous system. They are the basic building blocks of the nervous system and perform a variety of functions, including receiving and sending signals, processing information, and controlling movement.
The nervous system is responsible for coordinating the body's activities and responding to its environment. without neurons, the nervous system would not be able to function properly. Neurons are essential for survival and play a vital role in our health and well-being.
Homologous recombination can be used in the lab to replace a gene of interest with a selection marker. To confirm that the selection marker is integrated into the correct place in the genome, sometimes a negative selection is used in addition to the standard positive selection marker. Which of the following would act as a negative selection marker?
a. Transformation of a different gene, which does not act as a selection marker, to replace the gene of interest.â
b. A second marker in the knock out cassette, that if inserted into the genome results in cell death when plated on selective media.
c. Transforming the cells with two different knock out cassettes, each containing the same selection marker3. â
Answer:
b. A second marker in the knock-out cassette, that if inserted into the genome results in cell death when plated on selective media.
Explanation:
General recombination, also known as homologous recombination, refers to the naturally occurring process of exchange of genetic material between pairs of homologous DNA sequences. This process (homologous recombination) can be exploited by genetic engineering to insert DNA segments of interest at target genes. Moreover, a cassette is a mobile DNA segment containing almost a gene and a recombination site, which is integrated into the locus/loci of interest by homologous recombination. A cassette may contain a DNA segment called 'negative marker' which prevents growth under particular conditions, while a positive marker permits growth under certain conditions. In consequence, a second marker consisting of a drug cassette may be used as a negative marker in order to evidence its insertion by inducing cell death when they are plated in selective conditions.
The second word in a scientific name is
a. all of the above
b. an adjective describing the species
c. the same for other members of the same species
d. in Latin
an adjective describing the species
Answer: c. the same for other members of the same species
Explanation: Just trust me.
In what process do Cell Obtain energy from sugar molecules?
Answer:
Through the process of cellular respiration
Explanation:
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Which of the following is directly responsible for an orgasm?
Answer:
ERECTION
Explanation:
Which of these actions would be controlled by the somatic nervous division of the peripheral nervous system?
A. Blood vessel dialation
B. Movement of food down the esophagus
C. Opening and closing of the eyes
D.Opening and closing of the pupils
Answer:
C
Explanation:
True or False: There are about the same number of vertebrate species as invertebrates.
A
True
B
False
Answer:
False
Explanation:
The number of vertebrate species are more...
The life activity known as synthesis is chiefly characterized by the:
A) Distribution of essential compounds throughout an organism.
B) Production of complex molecules from simpler ones.
C) Elimination of waste products from the organism.
D) Regulation of physiological activities.
Answer:
B) Production of complex molecules from simpler ones.
Explanation:
Synthesis is the process of combining simpler molecules to form more complex ones. This can occur through various chemical reactions within an organism. The other choices do not accurately describe the process of synthesis.
A) Distribution of essential compounds throughout an organism - This refers to the transport of essential molecules within an organism, rather than the production of complex molecules from simpler ones.
C) Elimination of waste products from the organism - This refers to the removal of waste products, rather than the production of complex molecules.
D) Regulation of physiological activities - This refers to the control of physiological processes, rather than the production of complex molecules.
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Answer:
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If you weigh 60 pounds on earth, you would weigh blank pounds on the moon
Increased biodiversity results in a more sustainable ecosystem because -
Answer: Because, the higher biodiversity in an ecosystem means that there is a greater variety of genes and species in that ecosystem, and stability. It makes an ecosystem more sustainable because of the food web being stronger and the organisms providing a wide variety of functions.
I hope I answered you correctly and that it helps, I'm sorry if its wrong. Good Luck!
Explanation:
the illustration shows a model of the transport of soute particles from outside the cell to inside the cell. what type of cell transport is modeled
Answer:
The illustration shows a model of the active transport of solute particles from outside the cell to inside the cell.
Explanation:
Active Transport is defined as a process involving the movement of molecules from a region of lower concentration to a region of higher concentration against a gradient or an obstacle with the use of external energy.
This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
An example is the phagocytosis of bacteria by Macrophages.
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03.05 The Atmosphere and You Guided Notes
Objectives:
In the lesson you will:
describe the composition and structure of the Earth's atmosphere
describe the functions of the five main layers of Earth's atmosphere
explain how Earth's atmosphere (including the ozone layer) protects life and insulates the planet
discuss the effects of global warming and ozone depletion
Big Ideas:
Key Questions and Terms
Notes
What is the atmosphere?
It is the layer around earth that keeps gas in earth.
What gases make up the composition of the atmosphere?
Make a mnemonic sentence to remember the layers of the atmosphere.
What are the functions of each layer of the atmosphere?
What layer of the atmosphere has breathable air?
In what layer of the atmosphere is the ozone layer found?
What is the warmest layer of the atmosphere?
What is the coldest layer of the atmosphere?
In what layer of the atmosphere would you find satellites?
How does the ozone layer protect Earth?
What is ozone?
When does ozone become a pollutant?
Where is protective ozone located? Where is harmful ozone located?
How could a hole in the ozone layer affect humans?
Where are chlorofluorocarbons (CFCs) found? Why were they banned?
How does the atmosphere help insulate Earth?
What is the greenhouse effect?
What are greenhouse gases? Why are they important?
How are human activities affecting global warming?
Name three types of greenhouse gases. What types of human activities produce these particular gases?
What are some effects of global warming?
What does the term “climate change” refer to?
What is desertification?
What is a carbon footprint? What are some actions you can take to reduce your carbon footprint?
What are some of the results of too much sun exposure?
What are some ways you can protect yourself from harmful sun exposure?
Answer:
ozone is a pale blue gas which is made up of three oxygen atoms.
hole in ozone layer affect humans
bcoz harmful uv rays are entered through the hole which is dangerous to human's skin and health.
cfc are found in industries.
the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface is called green house effect
the main gases responsible for the greenhouse effect are greenhouse gases. they are important bescause Greenhouse gases keep our planet livable by holding onto some of Earth's heat energy so that it doesn't all escape into space.
effects of global warming:
1) climate change
2) melting of glacier
3) acid rain
climate change refers to the variation of the earths global or regional climate over a long period of time because of changes in environment
desertification is the process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture.
Answer:
Explanation:
5
Select the correct answer.
Which term defines a well-supported, explanation of an occurrence of a natural phenomenon?
A.
hypothesis
B. bias
C. observation
D. theory
Please help me
Answer: the answer is D a theory
Explanation: Because it has strong evidence backing the claims it makes
explain how the huge reduction of a Tasmanian devil population since 1996 affects the accessibility of the current population to new diseases in comparison with accessibility of population before 1996?
Answer:
In the past two decades, this species has experienced severe population decline due to the emergence of devil facial tumor disease (DFTD), a transmissible cancer. During these 20 years, scientists have puzzled over the immunological and evolutionary responses by the Tasmanian devil to this transmissible cancer
Which kind of light do plants use to make energy in photosynthesis?
A. Radio waves
B. Visible Light
C. Infrared Light
D. Ultraviolet Light
Answer:
B. Visible Light
Explanation:
The best wavelengths for photosynthesis fall within the blue range (425-450 nm) and red range (600-700 nm).
Please help!
1.) Explain why the term cycle is used to describe the biogeochemical cycles.
2.) Compare and contrast the carbon and nitrogen cycles. Specifically, identify which happens when either exists in very large quantities in the environment.
Select the correct answer.
Which is an example of dehydration synthesis?
A. DNA synthesis from nucleotides
B. conversion of proteins into its amino acids
C. conversion of lipids into fatty acids
(RrYy x RrYy), how many of the offspring will be dominant for both traits?
9 of the offsprings will be dominant for both traits in the above dihybrid cross.
What is a dihybrid cross?A dihybrid cross is a cross between two individuals with two observed traits that are controlled by two distinct genes.
Gregor Johann Mendel known as the father of genetics was the first person to discover the basic principles of heredity during the mid-19th century.
In a dihybrid cross between two parents that are heterozygous for both traits, the cross will result in four different combinations of seeds in the F2 generation as follows:
wrinkled-yellow round-yellowwrinkled-greenround-greenThese offsprings are in the phenotypic ratio of 9:3:3:1 where 9 represents the offsprings dominant for both traits.
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After classical conditioning has occurred, if the conditioned stimulus (tone) is repeatedly presented alone, without the unconditioned stimulus (food), the conditioned response (salivation) will
Group of answer choices
generalize.
discriminate.
strengthen.
weaken.
Answer:generalize
Explanation:
After classical conditioning has occurred, if the conditioned stimulus is repeatedly presented alone, without the unconditioned stimulus, the conditioned response will WEAKEN.
Classical conditioning refers to a class of learning that occurs unconsciously.Moreover, conditioned stimuli are previously neutral responses that drive conditioned responses after their association with unconditioned stimuli.Extinction refers to the process in which a conditioned stimulus is applied repeatedly, but without being paired with its corresponding unconditioned stimulus.In conclusion, after classical conditioning has occurred, if the conditioned stimulus is repeatedly presented alone, without the unconditioned stimulus, the conditioned response will WEAKEN.
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Photosynthesis is the critical process for life to exist. On Earth, it is certainly the
fundamental biological process that all forms of life rely on. This is a process is
carried out by most plants, algae, and some cyanobacteria. The process has
these organisms take in carbon dioxide, water, and minerals. Then with the help of
sunlight it creates sugars that provide the organism nourishment and life-giving
oxygen.
What is the main idea of the above passage?
Answer: Photosynthesis is the critical process for life to exist.
Explanation:
The main idea is on the first line.
You can see all the information afterwards are leading to the explanation of the process of photosynthesis.
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Crictually evaluate the hallmarks of cancer?
Answer:
We define seven hallmarks of cancer: selective growth and proliferative advantage, altered stress response favoring overall survival, vascularization, invasion and metastasis, metabolic rewiring, an abetting microenvironment, and immune modulation, while highlighting some considerations for the future of the field.
Give organism a name. Give it a common name AND a scientific name.
Write a short description to describe your organism’s evolution and showcase its key traits.
Answer:
My organism is called the Red Panda (Ailurus fulgens). It is a mammal native to the eastern Himalayas and southwestern China. The Red Panda is the only living species of its genus, Ailurus, and is closely related to the Giant Panda, although it has a much more specialized diet. It is an excellent climber and has a thick, woolly coat to help keep it warm in its cold mountain habitat.
The Red Panda has evolved over time to become more specialized in its diet and habitat. Its thick fur helps to keep it warm in the cold mountain environment, while its long, bushy tail helps it balance while climbing trees. Its diet consists mainly of bamboo, but it also eats fruits, eggs, and small animals. Its sharp claws and teeth help it to break open bamboo stalks and to defend itself against predators.
Explanation: