The movement of oxygen molecules over time from one side of the semipermeable membrane to the other side is known as

Hi there!!

Your answer is diffusion because the molecules are semiseperable.

Hope that helps!!

Sincerely,

Ans

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.