A comparison was made across eight species for their differences in amino acid sequences for the alpha chain of the hemoglobin molecule. Which inference can be made about evolutionary relationships based on the data presented in the table?

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )