The aorta, which arises directly from the heart
A. to increase food production
<span>The proteins of the electron transport chain are located in the inner membrane of the mitochondria.
Electrons are passed from one protein of the transport chain to another in a series of redox reactions, making the proton gradient which is then used to make ATP.</span>
Answer:
The answer is A.
Explanation:
Nitrogen is an essential nutrient for plants and a significant component of proteins, which all animals need to grow, reproduce and survive. The nitrogen cycle converts nitrogen into compounds that plants and animals can use.
