Answer:
A. The rate levels off
Answer:
Explanation:
Paleontologists use fossil remains to understand different aspects of extinct and living organisms. Individual fossils may contain information about an organism's life and environment. ... Studying oyster fossils can help paleontologists discover how long the oyster lived, and in what conditions.
Answer:
Explanation:
A codon is a sequence of three bases found on the messenger RNA (mRNA) molecule which is translated to produce an amino acid. Each amino acid is coded by one or more specific codons. If the codon is changed through a mutation, the amino acid produced may be different. However, in this case, the other codons that produce Leucine are:
UUA, UUG, CUU, CUC, CUA and CUG
So the code CUU could mutate to CUC, CUA or CUG and leucine would still be produced.
Answer
the answer is D hope this helps! c:
Explanation: