Answer: a. an anticodon and an amino acid
Explanation:
The following is a typical structure The tRNA where we can observe an anticodon that binds to the nucleotide sequence of the mRNA and an amino acid that in triplet encodes for an protein.
<span>Animalia -</span><span> Mammals, amphibians, reptiles, birds, fish, mollusks, and insects
are all included in this kingdom.</span>