It is replicable because all the other answers are based on an individual’s opinion, not science.
B - energy flow from one tropic level to the next
Nervous system and neuropipet compounds
Im almost certain the answer is D but theres a chance I might be wrong
Answer : The Aerobic exercise improves the oxygen purifying capacity of lungs. So, one can breathe in more oxygen through inhalation and then more oxygen is transferred to muscles in the body, also carbon dioxide is given actively out of the body through exhalation. All these gives body more energy to perform daily tasks and stay fit and healthy.
