The cellular process in which materials are moved across a membrane from an area of low concentration to an area of high concentration is called

The correct answer will be- active transport

Explanation:

The movement of molecules across the cell membrane is an important property which depends on the concentration gradient.

The natural movement of molecules usually take place from high concentration to low concentration but the movement also takes place against the concentration gradient that is from low concentration to high concentration which uses energy provided by ATP.

This movement of molecules using energy against concentration gradient is known as Active transport. This type of movement takes place in two ways: primary and secondary movement.

Thus, Active transport is the correct answer.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

the missing space is phylum