Which of these is a reason that early plants did not move far from water?

Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.

What is the relationship between absorbance of light and the rate of photosynthesis?

Which would be the most useful source of evidence to support mcneill's contention?