Answer: Three
Reason/Explanation:
The cat, you and the dog are all different populations. Together, there are three populations.
-DustinBR
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.
At least some portion of the molecule is hydrophobic.
There is there's only one characteristic common to all lipids, their inability to dissolve in water.
