When blood is in the lungs,
where oxygen is plentiful, oxygen easily binds to the first subunit and then quickly fills up the remaining ones. Then, as blood circulates through the body, the oxygen level drops while that of carbon dioxide increases. In this environment, hemoglobin releases its bound oxygen.
Answer:
growth
Explanation:
as the living organism grow, it's as a result of cell division
D. They help plants get nutrients and water form soill This is called mutualism.
Answer:
because somethings could go out into the ocean and harm sea animals like turtles some get stuck in plastic and some die because of water poeple throw away and if that continued we may make all the sea life die because of that
