All living cells need nitrogen to make nuclei acids, proteins, and other cellular constituents. Plants absorb nitrogen and put them into amino acids and proteins.
Answer:
I think the answer is the D
There are so many examples for that in different areas, like biology experiment carried out in our lab recently.
Here's one link : https://www.creative-biogene.com/Services/Biosimilar-Cell-Line-Development.html
I think the answer is false because blood flow can't prepare you for a potential encounter. Hope this helps ^_~