Most of the Earth's oxygen occurs in the form of minerals in the crust and mantle. The oxygen that is available in the atmospher e is used primarily by plants, animals, and bacteria to perform cellular respiration.
1 answer:
I think it's because of other organisms produces oxygen
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A) Steroid hormones travel in the plasma on large transport proteins that cannot pass through the filtration membrane
Answer:
The answer is B .
Explanation:
Plants are able to convert sunlight by using photosynthesis. Photosynthesis allows them to use sunlight to convert water and carbon dioxide into into glucose, which is sugar.
Blood needs to flow faster around the body in order to supply the muscles with oxygen for respiration
Don’t mind me getting my free points
Do you have a picture? as I’m unsure which elements need matching
