The sun gets closer to the earth
Answer:
B - Shape of the molecule that is known as a double helix
Explanation:
The correct answer is secondary structure of proteins is formed by the hydrogen bonding between amino acid chains.
Explanation:
The secondary structure of protein is generally stabilized by peptides bond along with hydrogen bonding between hydrogen atom and an electronegative atom such as oxygen.
The secondary structure both alpha helix and beta pleated sheet are stabilized by hydrogen bonding beside the presence of peptide bonds.
CREDIT: Pandeyarindam296
Plasma makes up 55% of blood volume
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The discovery of Lucy brought back to 3.2 million years the human presence on earth. She was found in Ethiopia in November 1974
