Answer:
the first option is correct
Explanation:
in a food pyramid the base is always producers.
The DNA is a double-stranded molecule that has a long chain of nucleotides. The RNA is a single-stranded molecule which has a shorter chain of nucleotides. DNA replicates on its own, it is self-replicating. RNA does not replicate on its own.
I’m pretty sure the answer is C
The lower the fossil the older it is.
So, if two fossils were in different layers of sedimentary rock, the lowest fossil is older.