C is the answer hope that helps if you dont get why i can explain :)<span />
Answer:
R group
Explanation:
All amino acids have both an amino group and a carboxyl group. The R-group (sometimes called the variable group) is what differentiates amino acids from one another. These R-groups have various structural properties that dictate the function of the resulting amino acid chain.
They seem to be all right to me, hope that helps. :)
Heart
Chemical
Gallbladder
Answer:
These serious insect-borne diseases occur when the insect is infected with a bacteria or virus and transmits that to a human via a bite. The insect can be a mosquito, as in yellow fever or dengue fever; a flea, as in bubonic plague; a tick, as in Lyme disease; or a louse, as in trench fever.