Evolution by natural selection.
survival of the fittest=natural selection
Answer:
A sequence of three nitrogenous bases in a messenger-rna molecule is known as <em><u>Codon</u></em>
Explanation:
Codon is a triplet of three nitrogenous bases present in mRNA. It can be any three from uracil, adenine, guanine or cytosine. They are arranged in specific order and code for specific amino acids.
A because if they build a mall there the bear have no where to live and they would die out.
The principle of Segregation sugests that a gene pair seperates
