The answer is directional selection
It is the mode of natural selection in which a single phenotype is favored, causing the allele frequency to continuously shift in one direction. The advantageous allele increases in frequency independently of its dominance relative to other alleles; that is even if the advantageous allele is recessive, it will eventually become fixed, changes the average value of a trait. Occurs most often under environmental changes and when populations migrate to new areas with different environmental pressures.
Cancer<span> can </span>start<span> when just one of them </span>begins<span> to grow and multiply too much. The result is a growth called a tumor. Benign tumors are localized growths - they only cause problems if they put pressure on nearby tissues, such as the brain.</span><span />
To make amino acids which makes proteins
The answer should be “D” :)