Choice C. that is Nitrogen.
Choice A. is a nitrate
Choice B. is carbon dioxide
Choice D. is ammonia
Hope this helps :)
Answer:
the vaccine causes the immune system to produce antibodies to the virus that causes the measles
The statement above is TRUE.
In evolution, there are different level of succession. Ecosystems usually start out as barren lands or barren rocks; over the course of time, different types of plants and animals will exist on the land and eventual died out and this will continue until the ecosystem has attained its full succession.<span />
Answer:
I think the answer is B
Explanation:
Plant cells have cell walls while animal cells do not.
The answer here would be
D. Saves money