Absorption,antibody,arteries,a… choice}?

Structures which contain the genes fir the traits
Taking in nutrients through the smal intestine
The sum of all body chemistry
The process if the kidneys taking out the impurities from the blood
A hormone secreted by the pancreas which lowers the even of the blood sugar
Tiny vessels through which diffusion takes place between the blood and the body tissues
The tubes into which the trachea divide to go into respectively lung
A protein produced by the body to combat foreign particles
One of the two thin-walled chambers that recieve blood into the heart from the veins
Heavy walled vessel which brings blood way from the heart

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Answers:

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1) chromosome
2) absorption
3) ?
4) filtration
5) insulin
6) capillaries
7) bronchial tubes
8) antibodies
9) atrium
10) arteries

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