I think b surface fronts but im not 100% sure
I think the first one, species must have descended from preexisting species.
The<span> hairy frog</span><span> is vestigial</span>
Different kinds of proteins that might be made by the ribosomes are structural, transport, antibodies, storage, contractile protein.
Further Explanation: RNA is Ribonucleic Acid different from DNA by one ribose and RNA is single-stranded. There are different forms of RNAs are present such as mRNA, tRNA, and rRNA.