Question

State the most likely hypothetical order of evolution of anaerobic respiration, aerobic respiration and photosynthesis. Provide two pieces of evidence to support the hypothesis.

Answer 1

This would be the likely hypothetical order of the evolution of the three:

First, Anaerobic - for the reason that it does not need or make O2.

Second, Photosynthesis - necessitates membranes, creates O2.

Lastly, Aerobic - needs produces from aerobic and photosynthesis.