I think the kind of choices would be primary or secondary source: and this would be a secondary source:
a primary source would be the journals where the results were published and the secondary would be the tv program that used those reports as a primary report!
so the answer is secondary source!
Gel electrophoresis can't be used for uncharged or neutral molecules, because the movement of the charged particles only make this happen
they use natural selection because they got separated from their kind and have to make new living also they need to adapt to the environment
A metal and non-metal form into a compound. that compound is an ionic compound.
Protection, sensory perception, storage, absorption, sunscreen, dilation, and constriction
