<span>In the past, human populations were controlled by </span>Disease and Famine
Where organisms are better adapted to their environments tend to survive and produce more kids!
Answer:
Red blood cells (RBC)
Photosynthesis, because the equation is using light energy and producing oxygen, like a plant, which use photosynthesis to make food.
Answer:
Haversian canals are bone structures that contain blood vessels that provide materials for the osteocytes
Explanation:
Through this Harvesian canals, blood vessels that contain the necessary nutrients for their growth and development are brought which keeps them alive