Answer: changed by molecular oxygen
Explanation:
Biologically induced molecular oxygen (dioxygen, O2) started to accumulate in Earth's atmosphere and changed Earth's atmosphere from a weakly reducing atmosphere to an oxidizing atmosphere.
Glycolysis, Krebs cycles and electron transport chain are the three steps of cellular respiration, for converting glucose into energy.
It produces proteins for the cell to function
Answer: corals, crabs, oysters and urchins
Explanation:
Answer:
A
Explanation:
If Im wrong pls correct me, I hope it will help
