The first, second, and fourth statements are correct.
The answer would be fats and proteins.
Microtubules provide a rigid structure, or cytoskeleton
The B-pleated sheet is held together by hydrogen bonds between adjacent segments.
In an a-helix the side chains are located on the outside of the helix
The secondary level of protein structure refers to the spatial arrangements of short segments of the protein
Mutualism interaction do both species benefit?
