Which population is limited by a density-dependent factor
A many eggs in a population of frogs are destroyed due to drought
B a population of rams is decimated by an earth quake
C A local wolf population experiences a lethal epidemic of parvovirus

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.

Compare the composition of the moon's surface with the composition of the earth's surface.

What is a photon? a. part of a ribosome b. a light particle c. a carbon dioxide molecule d. part of a chloroplast b. a light particle