I think it's A.) RNA is typically a double-stranded molecule, whereas DNA is always single stranded.
Answer:
b.) an amino acid.
Explanation:
A nucleotide contains three things:
- a 5-carbon sugar
- a nitrogenous base
- a phosphate group
Since amino acids are not on this list, the correct answer is b.
The lake's pH level of 5.4 is decreasing the amount of bass and mayflies.
hope this helps :)