Answer:
they use to live
Explanation:
As they breath out carbon dioxide the plants take in the carbon dioxide and make air with it. Animals also use air to do their day to day things like eat.
Your reflection will warp. I don't mean to be rude, but don't you have a spoon to test this out for yourself?
Answer:
D
Explanation:
Plants take their nitrogen from the soil which would have been converted by bacteria ...not straight from the atmosphere
Answer:
Open circulatory system:
Relies on the heart to keep blood flowing
Used in all vertebrates
Sorry thats all i know :)