Cause and effect. how could the number of mitochondria in an athletes muscle cells affect his or her

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi