Answer: b.
Primary - sequence of amino acids with peptide bonds
Secondary - a-helix and b-pleated sheets with hydrogen bonds
Tertiary- 3D structure held together by R-group (most proteins only go to this level)
Quaternary- multiple sequences of amino acid chains
Answer: The Bengal tiger and Florida panther are two distinct species if they mate will not be able to reproduce.
Explanation:
A species is a group of organisms that are capable of inbreeding and producing viable fertile offsprings. The members of different species will not be able to mate due to behavioral, morphological, and physiological differences between the phenomena related to this condition is called as reproductive isolation.
The Bengal tiger and Florida panther if mate they may not be able to reproduce viable offsprings due to differences in the physiology of the genital organs and gamete which may not fuse to developing offspring.
i have the answer and it says C
Cross over? i have no idea lol