Many things can occur such as an increase in temperature.Which would then result in greater/destructive natural disasters. Temperature would cause either droughts or floods in certain places as well.
Don’t know the answer to the first one but the last one should be histones
Answer: A. It moves air into the lungs.
Explanation: The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
