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Monica [59]
2 years ago
10

2. The structural and functional unit of life is (a) a cell, (b) an organ, (c) the organism, (d) a

Biology
1 answer:
Stolb23 [73]2 years ago
5 0

Answer:

A. A cell

Explanation:

Cells are the building blocks of life.

They are the biological units of organisms and are the basic structural and functional units of life.

Cells are the smallest units of life.

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Although selection operates against deleterious alleles in populations, they are rarely lost from these populations. For example
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Answer:

Deleterious alleles appear sporadically in a population

Explanation:

A population with a deleterious allele will have no or few individuals that have the ability to pass along these traits. These alleles appear less in a population because of selective pressure but they are not always absent. The alleles appear less often but are are not always passed on and the others that are genetically fit are able to pass along their genes. The reason the population equilibrium is not zero is because these alleles do appear but they are not necessarily passed along. These individuals may not be able to reproduce or reach the age of reproduction.

Deleterious alleles appear more often, making individuals less fit genetically, i.e. they pass fewer copies of their genes to future generations. Put another way, natural selection purges the deleterious alleles.

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An insect gets trapped in tree sap. The sap dries, and the insects are preserved exactly as they were in real life.
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Answer:

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Which biome has the least precipitation?
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Answer: Option C.

Tundra

Explanation:

Tundra is a biome that has low Precipitation. Precipitation is a form of water that fall from the atmosphere to the Earth surface. Which could be inform of snow, sleet e.t.c.

Tundra is the coldest of all types of biomes. It has low temperature, little precipitation,low nutrients. It is located near the north Pole of the Earth. It is characterized by permafrost, permanent frozen layer on its surface.

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What are X-Rays used for?
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B. form images of internal organs
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