Why does a cell use less energy to move things when they are small?

Because they don’t have to move quickly because it’s a smaller space.

Explanation:

When a cell moves quickly they are trying to take up space. So if the cell is moving in a small space then they would use less energy

answer: a. a gene that causes a specific trait.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.