The arterial end is the part where the blood enters from the capillaries into the alveolus. The PO2 at the arterial end has a lower concentration of oxygen that is the PO2 is 40 and once this blood enters the alveolus the oxygen from the air in the alveoli dissolved in the blood hence increasing the PO2 of the air. The PO2 of the air remains the same until it reaches the body part where the oxygen is again consumed. Hence the option PO2 in the capillaries is lower than the PO2 in the alveoli is the right option
The prokaryotes are by far the most abundant organisms inhabiting planet Earth. They are also by far the most diverse.
Answer:
The femur contains yellow marrow, but the sternum does not. The femur makes red blood cells, and the sternum makes white blood cells. The femur contains compact bone, and the sternum does not.
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Answer:
<em><u>Half</u></em>
Explanation:
The probability of getting a boy or girl is
1/2
This case of mistaken identity called imprinting. The best-known form of imprinting is filial imprinting, in
which a young animal acquires several of its behavioral characteristics from
its parent. It is most obvious in nidifugous birds, which imprint on their
parents and then follow them around.
