Identify each protein structure level described below. a. may involve hydrogen bonds, salt bridges, and disulfide bonds that determine a protein’s three- dimensional structure
b. is determined by the interaction of several polypeptides coming together
c. is the amino acid sequence of a protein

What is an example of a physical property?

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Identify and describe the three ways that mutations affect organisms.