Question

select the correct answer from each drop - down menu. is a process thats absent in cellular respiration in anaerobic organisms but present in aerobic organisms. is a process that doesnt require oxygen.

Explanation:

Aerobic organisms use oxygen - dependent processes like the electron - transport chain in cellular respiration, which is absent in anaerobic organisms. Anaerobic respiration and fermentation are processes that don't require oxygen.

Answer:

First drop - down: Electron - transport chain
Second drop - down: Fermentation (or Anaerobic respiration)