-it transports nutrients in the body
-it circulates macrophage in the body
Answer:
<u>Without a water supply, organisms in aquatic and land habitats will die. Organisms without access of water cannot access oxygen, and as a result of that, they would die. Oxygen is needed for organisms in order to survive. Water also helps insulate the living environment for these organisms.</u>
<span>the answer is light microscopes.</span>
The answer is D. Mutualism
