Answer:
The oxygen enters the bloodstream from the alveoli, tiny sacs in the lungs where gas exchange takes place (Figure below). The transfer of oxygen into the blood is through simple diffusion. ... While oxygen moves from the capillaries and into body cells, carbon dioxide moves from the cells into the capillaries.
Explanation:
Answer:
Metaphase 1: Microtubules of one pole are attached to kinetochores of one of the two chromosomes facing to the same pole. Metaphase 2: Microtubules are attached to the kinetochores of the centromere on either side of a single chromosome
Explanation:
Bleach
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