Each nucleotide triplet in mRNA that specifies a particular amino acid is called a D. Codon.
Answer:
C
Explanation:
Trilobites were alive the longest time ago, so they would be found in the oldest rock layer.
Cuz they combine during fertilization and since 2 halves = 1 whole, u get gametes w a full number of chromosomes
A red blood cell's function is to transport oxygen.