Contour intervals between contour lines
The two serous membranes of pericardium are :visceral pericardium,parietal pericardium.
The answer is Tree because it is a plant which means it has cellulose tubes.
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Proteins are polymers of amino acids. There are a fixed set of amino acids that are involved in the making of a protein. These amino acids are varied in number and type to give rise to different combinations in a polymer. This creates a diversity of protein molecules.
The amino acids link to other amino acid in the polymer through the formation of a peptide bond between them. It forms when the carboxylic group of one amino acid molecule reacts and binds to the amino group of the other molecule.
Answer:
is substance that cannot be broken down into a simpler form
Explanation: