How would the increasing number of photosynthesizing organisms on earth have affected earth/other organisms?

Answer 1

The photosynthesizing organisms took the oxygen out of the water. If they increased, more oxygen would be present and the aerobic animals would thrive.

Answer 2

Photosynthesizing Organisms

Answer 3

By photosynthesizing organisms meaning those organisms capable of using the photosynthetic process to consume carbon-dioxide and expel oxygen. The oxygen which is expelled by said process is utilized by other organisms--namely homo sapiens meaning you and I and other animals who respire though lungs. Humans utilize approximately 21% of the oxygen which is expelled by plant life through photosynthesis.

Answer 4

That would be a big step in curbing the greenhouse effect. These organisms would use up the excess carbon dioxide in the atmosphere and produce much needed oxygen and food. I think everyone would benifit. Plant more trees!!!!!!