8. Which body system absorbs oxygen? 9. Which body system distributes oxygen?
10. Which body system absorbs nutrients?
11. Which body system distributes nutrients?
12. What organism aids your body with digestion?

8. respiratory system

9.circulatory system

10.digestive system

11. circulatory system

12. e.coli, pro-biotic bacteria/enzymes

Explanation of 12:

Lactic acid bacteria and Bifidobacteria are two important types of gut bacteria, which are autochthonous ones from birth or acquired from digested food. Lactobacillus and Leuconostoc spp. are the main lactic acid bacteria found in the human intestine.

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.

the planets have a circular orbit around the sun.