A,C,D are the answers. I took Biology.
An electron transport chain (ETC) is a series of complexes that transfer electrons from electrondonors to electron acceptors via redox (both reduction and oxidation occurring simultaneously) reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane.
Two Types of Feedback Loops: Negative and Positive
I believe the answer is branch gap sorry if I’m wrong
Answer:
water, carbon, nitrogen, phosphorus, and sulfur cycles.
Explanation:
Biogeochemical cycles important to living organisms include the water, carbon, nitrogen, phosphorus, and sulfur cycles.
