Answer:
Yes, mixtures can be separated using a variety of techniques.
I believe it's oxygenated or oxygen rich blood away from the heart.
Answer:
RNA primer
Explanation:
the DNA polymerase can't synthesize DNA without an 3' ending, the primase enzyme synthesize an RNA primer that brings to the DNA polymerase the 3' spot so she can finally starts the new DNA chain.
He found a nuclear structure (cells) in plants by looking through a microscope