C. Gravity causes stars to cluster
Sawarasenai kimi wa shojo na no!~ boku wa yarichin bicchi no osu dayo! ah~
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Answer:
The composition of the blood entering from Q is different from the blood leaving through R because it contains more nutrients.
Explanation:
This diagram is the structure of villi which is a main part of small intestine. The main function of villi is the absorption of nutrients from food materials and add these nutrients into the blood vessel which is present inside them. So this blood contains more nutrients.
