Answer:
B
Explanation:
It removes other waste from our body and keeps our blood clean
Earth's atmosphere is 78%<span> nitrogen </span>21%<span> oxygen, </span>0.9%<span> argon, and </span>0.03%<span> carbon dioxide with very small percentages of other elements.
hope it helps</span>
A formed, photosynthesis, uses sunlight and carbon an uses it for energy or glucose
I'd say to help the reader quickly locate geographic regions.
Answer:
chitin
Explanation:
chitin is a complex carbohydrates, similar to cellulose, that makes up organic structure, such as the cell walls of fungi and exoskeletons of insects and other arthropods.
