I’m pretty sure the answer is A but if you already ruled that out try B
Answer:
Transport oxygen.
Explanation:
Red blood cells transport oxygen throughout the body with the help of hemoglobin.
In a food web there is a hierarchy, if any one of the parts of a food web is changed it can effect the parts above that may consume it, or the parts below that it may consume. Since the food web relies on balance and a hierarchy, if something changes it could disrupt the balance and flow of energy in the food web.
Answer:
A. Hydrogen bonds
Explanation:
A. Hydrogen bonds causes water molecules to stick together in liquid water.
