Answer:
c
Explanation:
Natrual selection is survival of the fittest, so only the best suited for that environment survive.
Answer:
hemoglobin is the red pigment
All of the food have Carbon in them bc everything have carbon in it even humans
Answer:
Explanation: Toghether, insulin and glucagon help maintain a state called homeostasis in which conditions inside the body remain steady. When blood sugar is too high, the pancreas secretes more insulin. When blood sugar levels drop, the pancreas releases glucagon to raise them.
