A.
Animal scientists applies principles of the biological, physical, and social sciences to the problems associated with livestock production and management.
Answer: The Pulmonary vein blood vessel carries oxygenated blood from the lungs back to the heart. Therefore, it carries the highest concentration of oxygen.
Explanation: i think is the answer not sure hope it help this question :)
Mitochondria by using cellular respiration to make ATP
Answer:
right ventricle to left ventricle
Explanation:
