Answer:
B. An idea supported by evidence.
Proteins. <span>The amino acids in a polypeptide chain are linked by peptide bonds. Once linked in the </span>protein<span> chain, an individual amino acid is called a residue, and the linked series of carbon, nitrogen, and oxygen atoms are known as the main chain or </span>protein<span> backbone.</span>
Answer:
A red "L" is a symbol for low air pressure.
I agree with the other person you answered the answer is B duckweed growth