The conformation, or shape, of a protein determines its function. there are four orders of protein structure:
primary, secondary, tertiary, and quaternary.
which of the following statements is accurate regarding these protein structures?

choose 1

a
proteins in a quaternary structure consist of a simple polypeptide chain.

b
interactions between the r
groups in amino acids form tertiary structure.

c
the two types of primary structure are a helices and pleated sheets.

d
secondary structures are formed by multiple polypeptide chains.

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

hope this   and an i get brainlsiest

i thinking chemical change

the fossil record provides evidence of a common ancestor to many species.

what tree

explanation: