17. The shape of a polypeptide a. is maintained by bonding between parts of the polypeptide.
b. is ultimately dependent on the primary structure.
c. involves hydrogen bonding.
d. All of these are correct.

d

Explanation:

i think this is correct

a. seed plant structure. 1. the three main plant organs are roots, stems, and leaves. a fourth kind of tissue, meristematic tissue, is responsible for plant growth. meristematic tissue is the only plant tissue that produces new cells by mitosis. plants can lose water out of their leaves as they exchange gases with the air

explanation:

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.