I think the choice of answer for each question provided were not clearly stated. But I will provide the answer to each question.
1. <span>Where chemicals pass between cells and blood? Answer: Capillaries
2. </span><span>An atmospheric gas expelled by body cells. Answer: Carbon dioxide
3. A </span>vessel that carries blood away from the heart. Answer: Pulmonary artery
4. The liquid that carries chemicals and blood cells through the circulatory system. Answer: Plasma
5. Air sacs within the lungs . Answer: Alveoli
6. A lower part of the heart. Answer: The lower part of the heart is made up of two chambers called left and right ventricles.
7. Any of the arteries, veins or capillaries that carry blood through the body. Answer: Arteries
8. Vessels that carry blood back to the heart. Answer: Arteries
9. An upper part of the heart. Answer: The upper part of the heart is made up of two chambers called left and right atria.
As for question number 10, I cannot provide you an answer since the question posted is not valid. I hope this helps.
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Answer:
The correct answer is B 4 cells are formed,each having half the number of chromosomes as the original cell.
Explanation:
Meiosis is a specific type of cell division that occur in the germ cells.Meiosis is called reductional division because the 4 new cells those are produced after second meiotic division contain half the number of chromosomes as that of original cells.
During meiosis a cell undergo division two times the division that occur during first time is called first meiotic division resulting in the formation of 2 cells having 2n number of chromosomes.On the other hand the second meiotic division form 4 cells each having half the number of chromosomes.
