Answer:
to restrict the gene pool to individuals
of the same apecies.
Explanation:
abstract. species-specific adhesion of sperm to the egg during sea urchin fertilization involves the interaction of the sperm adhesive protein, bindin, and a xomplemetary receptor on the egg surface, and serves to restrict the same gene pool to individuals of the same species.What do all members of a biological species have in common? Question 1 options: They are members of the same population. They can interbreed and produce fertile offspring. They have identical physical characteristics. They live in the same geographical location.
The correct answer is All members of a biological species have in common is that they can interbreed and produce fertile offspring.
It has a common gene pool, can interbreed to produce new offspring, can produce fertile offspring. It has a collection of gene variants. Species are separated from each other by zygotic events that cause differences in them.
What is biological species?The biological species have all in common that they can produce fertile offspring. For example Sturnella neglecta, Sturnella magna.
Hence concluded that all members of a biological species have in common they can interbreed and produce fertile offspring.
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How can populations grow over time?
The amount of organisms born must be more than the number who have died. Available resources in the habitat exceed the number of organisms in the population
The death rate exceeds the birth rate for the population
Both A and B
Both B and C
Answer:
Both A and B.
Explanation:
(1). The amount of organisms born must be more than the number who have died.
This should always be the case with any animal population. If the death rate is higher than the amount of organisms born, the population would eventually become extinct if nothing is done.
(2). Available resources in the habitat exceed the number of organisms in the population.
If the amount of resources in the habitat are less than the entire population itself, the population would eventually use up all those resources and would become extinct.
(3). The death rate exceeds the birth rate for the population.
If the death rate exceeded the birth rate, the population would die off overtime.
Paper chromatography is a laboratory technique that is used to
A) separate different molecules from one another
B) stain cell organelles
C) indicate the pH of a substance
D) compare relative cell size
Answer:
A)
Explanation:
The paper chromatography is a laboratory technique that is used to separate different molecules from one another.
Answer: The right answer to this question is A: separate different molecules from one another.
Explanation:
The simple definition for paper chromatography is the separation process in which the liquid or gas molecules are separated from one another at a different rate.
How might diet influence the number of humans that Earth can ultimately support?
Diet which includes food directly from the source (grain based diet) will increase the number of humans that Earth can ultimately support.
What is Diet?This is referred to as the type of food an organism eats. It is however said that grain based diet is the best.
This is as a result of this type of diet being able to increase the number of humans that Earth can ultimately support. Meat consumption may however cause a decrease in this scenario.
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Which statement is MOST likely the explanation of why certain animals are able to adapt to changing environments?
Answer: D . some species react by mutating
Explanation:
"traits that can be passed down allow organisms to adapt to the environment better than other organisms of the same species. This enables better survival and reproduction compared with other members of the species, leading to evolution."-Adaptation | National Geographic Society
Certain animals are able to adapt to changing environments because some species have greater variation in their genetic makeup. Therefore, option A is correct.
What is adaptation?Adaptation refers to the process by which organisms change over time to better suit their environment and increase their chances of survival and reproduction. Adaptations can take many forms, including changes in behavior, physical characteristics, or internal processes.
Adaptation is an important concept in evolutionary biology, as it is a key mechanism by which organisms become better adapted to their environment over time.
Certain animals are able to adapt to changing environments because some species have greater variation in their genetic makeup. Therefore, option A is correct.
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What jobs did janet reno and madeleine albright hold during bill clinton's presidency?
Answer:
Janet Reno as the Attorney General oversaw the Justice Department.
Madeleine Albright was the United States Secretary of State.
Explanation:
Help me I can't wait quick!
Answer:
Box 2
Explanation:
If you follow the charts with the characteristics from each option, you will see that box 2 will have nothing in it because the first chart's information will not apply to it.
What does an autotroph mean?
Explanation:
a signature, especially that of a celebrity written as a memento for an admirer.
difference of 3 domain scheme and 5 kingdom scheme
•Difference of 3 domain scheme and 5 kingdom scheme.
Answer:
•There are five kingdoms; monera, protista, fungi, plantae and animalia. On the other hand, all living organisms belong to three domains namely, bacteria, archaea and eukarya. Similarly, domain Eukarya includes protista, fungi, plantae and animalia. Hence, this is the difference between kingdom and domain.
Explanation:
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a Bb guinea pig crosses a Bb guinea pig, and four offspring are produced. All of the offspring are black. Explain how this could happen
What do good bacteria do and what do harmful bacteria do?
Answer: (these are my words)
Good Bacteria always help the body do something, for example, there's a type of bacteria in the intestines that helps digest the food. But, there are bad bacteria that harm the body, for example some chemicals, which might damage something in the body.
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5. Starting with a segment of double-stranded
DNA, create a model to show how an error that
occurs during DNA replication would be passed
on to future generations. Explain how this model
illustrates how errors in DNA replication result in
genetic diversity
Answer: N/A
Explanation: During S phase, polymerase enzymes sometimes insert the wrong nucleotide or too many or too few nucleotides into a sequence, causing errors in DNA replication
Should the FDA allow GMOs food to be sold in stores around the U.S?
Answer:
they allow gmos to be sold In stores because they are safe to eat if it weren't safe it wouldn't be in the store
The medial surface of the left lung has a cavity that accommodates the contents of the mediastinum. It is called the ________.
The cardiac notch is the concave area in the left lung that leaves a space for the heart to accomodate. The corrcet answer is cardiac notch.
What is the cardiac notch?
The left lung has superior and inferior lobules, one oblique fissure, it is adjacent to the heart, the aortic arch, the thoracic aorta, and the esophagus. It also has a cardiac notch.
The cardiac notch is a concave lung area where the heart accommodates. Its main function is to leave a space for the heart to lay. It is placed in the anteroinferior border of the superior lobule of the lung.
Since the cardiac notch is the area where the heart is placed, it only appears in the left lung.
The correct answer is cardiac notch. The medial surface of the left lung has a cavity that accommodates the contents of the mediastinum. It is called the _ cardiac notch_.
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4. What would happen to an ecosystem if one of the
primary consumers were removed?
Answer:
Without the primary consumers there would be no source of energy for carnivores or secondary consumers so no secondary consumers would exist in that ecosystem. Also there would by definition be no primary consumers. The producers would be the only organisms in the ecosystem, besides decomposers.
In which order does water pass through these structures in a plant?
Answer:
1) Root Cortex
2) Root Hair
3) Xylem
4) chlorenchyma cells
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Susana heats up a sample of red crystals. While the sample is being heated, a gas is released, and a blue powder is left after the heating. Is the sample of red crystals an element or a compound? Explain your answer
Answer:
its a compound
Explanation:
because it was broken down into a gas and blue powder, elements cant be broken into simpler substances.
Fill in the blanks to complete the sentences about why Earth's atmosphere is important to living things. Earth's atmosphere provides that animals need to breathe. The atmosphere keeps Earth warm, allowing to exist as a liquid. Earth's atmosphere filters out harmful radiation from the
Answer:
a, b, a
Explanation:
The complete sentence about why Earth's atmosphere is important to live things is given below:
Earth's atmosphere provides oxygen that animals need to breathe.The atmosphere keeps Earth warm, allowing water to exist as a liquid.Earth's atmosphere filters out the harmful radiation from the sun.What is earth's atmosphere?The gases that surround the Earth make up the atmosphere. It gives us air to breathe, protects us from the Sun's damaging ultraviolet (UV) radiation, traps heat to warm the globe, and lessens the dramatic temperature changes between day and night, all of which contribute to making life possible.
In addition to providing us with the oxygen we need to survive, it shields us from dangerous UV solar radiation. Without it, the pressure needed for liquid water to exist on the surface of our planet would not be possible.
Therefore, the correct options are B, oxygen, D, water, and E, sun.
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The question is incomplete. Your most probably complete question is given below:
nitrogen
oxygen
carbon dioxide
water
sun
ground
moon
Contrast the two different methods of locomotion that a Paramecium can utilize depending on if it needs, or wants, to move slow or fast
Locomotion in paramecium is through metaboly and ciliary beating.
What is locomotion?Locomotion refers to the ability to love from place to place.
Paramecium is a unicellular eukaryotic organism found in aquatic habitats.
Paramecium performs locomotion by two methods
metaboly or body contortions andby ciliary beats.Metaboly is a type of movement where the paramecium squeezes itself through narrow passages by changingthe structure of its protoplasm.
Metaboly is a temporary and slow locomotion im paramecium.
Ciliary beating is a fast method of locomotion in paramecium through forward or backward beating of the cilia.
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3. How have predators changed the light and dark-colored mice
populations over time?
Answer:
Explanation:
Because predators could more easily spot the dark mice on light sand. The lighter mice were more likely to survive and have offspring. Natural selection favored the light mice. Over time, the population became light colored.
Describe a situation which genetic variation played a role in the organism we see today that exhibit mimicry or camouflage.
Genetic variation is the raw material for natural selection. It is part of evolution.
What is evolution?Evolution refers to descendence with modification, which especially happens due to natural selection.
Natural selection is the process of differential survival and reproduction of the fittest (more adapted) organisms.
Genetic variation is the raw material used by evolution to 'select' the phenotypically more adapted organisms in a given environment.
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Which immune cells directly mediate the apoptosis of the kidney cells and therefore the rejection of the kidney itself
Answer:
Killer T Cells (Cytotoxic T cells)
Explanation:
Cytotoxic T Cells are the immune cells that directly mediate the apoptosis of kidney cells.
Base your answer on the diagram below and on your knowledge of biology.
Strand A would normally be found in the
A) plasma membrane
B) ribosome
C) vacuole
D) nucleus
Answer:
D
Explanation:
A is incorrect because genetic material is not present in the plasma membrane.
B is incorrect because Strand A contains Thymine, meaning it is a DNA strand. RNA is the only genetic material that can be found in ribosomes.
C is incorrect because genetic material is not present in any vacuoles.
D is the correct answer because as stated above, Strand A is a DNA strand and so it will be found in the nucleus!
Hope this helps!
Which is the toughest and most durable of the different types of cytoskeletal filaments?.
Intermediate filaments are the toughest and most durable of the three types of cytoskeletal filaments and can survive treatment with concentrated salt solutions and detergents.
The areas surrounding the North and South Poles are deserts. Group of answer choicesTrueFalse
Answer:
False
Explanation:
The poles are covered by Ice at most seasons of the year
Life takes place in populations, and the size of a population can increase, decrease, or remain the
same, depending on whether individuals are being added or removed from that population. What do organisms need to survive?
Answer:
your body gets its energy from food, and you must consume other organisms such as plants and animals in order to survive.
Explanation:
'Chemoheterotroph” is the term for an organism which derives its energy from chemicals, and needs to consume other organisms in order to live.
How do you think Earth would be different
if it was closer to the Sun? Further from the Sun?
Answer:
if the Sun was closer the temperature will increase while if it was far the temperature will decrease
Answer:
If the earth was closer to the sun the temperature would increase and humans wouldn't be existing...
if the earth was away from the sun then the earths temperature would decrease and it would be completely ice....
Explanation:
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Quick Question!
If the diploid number of an organism is 36, how many chromosomes are found in a gamete?
-:-:-
Answer:
18
Explanation:
gametes only contain one half of a full genome (genetic makeup) so 36/2 is 18
.
What biological organisms are in topsoil?
Topsoil is the home of living things and the materials that they make or they change. Some examples of organisms that live in the soil are small animals like moles and earthworms, bacteria, and fungi that mix and break down materials into nutrients for plants, animals, and insects.
Answer:
moles and earthworms, bacteria, and fungi
Explanation:
hope this helps im not really sure if its right or not <3
Which system is responsible for the transportation of blood throughout the system?.