This is the answer from google!!! hope this helped
Answer:
The thyroid.
Explanation:
This controls your adrenaline.
Brainliest?
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.
C. cells . are the basic units of life
