What happens in a photic part of a body of water?
A. No plants can grow
B. Water flows in and out quickly
C. The water is stagnant
D. Plants grow using photosynthesis

What re the two main phrases of the cell cycle.

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

Did you know that a blue wales tongue weighs more than an elephant?