A codon is composed of three_ Phosphate molecules
Sugar molecules
Nitrogen bases
hydrogen bases

its d lol

; 0

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

burning fossil fouls really decrease the carbon in the atmosphere so b