I really think that its the second one; Nihilist
The answer is C, loss of biodiversity due to an invasive species
A and D are almost entirely solid solid
C. All of the above
The cell membrane helps maintain the osmotic potential by doing both A and B, it does not make ATP however.
The correct answer is proteins.
Proteins have four structures; (1) primary, (2) secondary, (3) tertiary, and (4) quaternary. Primary structures of proteins are formation of peptides and the peptide bonds between amino acids. Secondary structures of proteins involves the amino acid composition leading to hydrophobic interactions forming either alpha helices or beta sheets. Interactions between secondary structures of proteins will make the tertiary structure which is either soluble (globular) or insoluble (fibrous) proteins. Quaternary structures are the combination of two or more tertiary structures and these are called subunits.
