B. Living things must be made of cells.
Viruses are not alive and thrive on their host’s therefore they are NOT made up of cells.
<span>Here are the choices for the question stated above:
a.deserts b.grasslands c.mountains d.rainforests
The answer would be letter d. rainforests.
</span><span>Basing on the animals' webbed foot, it should mean that these animals are good swimmers. Thus, webbed foot enables effective propulsion in water.</span>
A scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules. A scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell.