Answer:
the awnser is A river basin
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Answer:
Protists help break down dead material and help produce oxygen
Explanation:
I just took the quiz on k12
I'm new here and this is one of the first things i've done on this site but to answer the question, i believe the answer is amino acids
The molecular clock is a figurative term for a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged. The biomolecular data used for such calculations are usually nucleotide sequences for DNA or amino acid sequences for proteins.
Explanation:
