Where does sugar enter the blood? B. How can you tell where sugar enters the blood? C. Where is sugar removed from the blood? D. How can you tell?

Well,

Explanation:

For your first question, the intestines.

B.When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose. The stomach and small intestines absorb the glucose and then release it into the bloodstream.

C. The capillaries.

D. Glycogen is mainly stored in the liver (where it makes up as much as 10% of liver weight and can be released back into the blood stream) and muscle (where it can be converted back to glucose but only used by the muscle). Therefore, excess glucose is removed from the blood stream and stored. In short terms, when it has the lowest content.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: