Answer:
All viruses are obligate parasites; that is, they lack metabolic machinery of their own to generate energy or to synthesize proteins, so they depend on host cells to carry out these vital functions.
Because there are not strictly green and yellow plants, this means that
the color can be affected by multiple genes. If it was only affected by
one gene then you would see only the two groups for the color, green and
yellow. The answer is D
<span>There are several genes that control the color.
</span>
The correct option is B.
The biogeochemical cycle refers to the pathway through which chemical substances are recycle through the biotic and the abiotic components of the earth. There are many types of biogeochemical cycles, examples include: water cycle, carbon cycle, nitrogen cycle, etc.
