which is composed of amino acids and determines all the structures and functions of organisms?\n○ dna\n○…

which is composed of amino acids and determines all the structures and functions of organisms?\n○ dna\n○ ribosome\n○ mrna\n○ protein
Answer
Answer:
D. protein
Brief Explanations:
- DNA is made of nucleotides, not amino acids.
- Ribosomes are organelles (composed of RNA and protein) that synthesize proteins, not made of amino acids as the main component determining all organism structures/functions.
- mRNA is a type of RNA (nucleotide - based) that carries genetic info for protein synthesis.
- Proteins are polymers of amino acids and are responsible for most of the structures and functions in organisms (e.g., enzymes, structural components like collagen, transport proteins, etc.).