Why is the beak of a bird important?

Nucleic acid certain protein cell membranes certain carbohydrates

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto

The first amino acid of a new polypeptide chain is