The best answer is D.
Man obtains most of his amino acids from diet, and mostly the essential amino acids. Of the basic set of 20 amino acids, man can only make 9, but these are considered non-essential anyway. They are made from non-protein raw materials such as pyruvate.
Amino acids themselves are the building blocks for proteins.
Protein is the raw material for muscle growth and repair.
Hormones are made from protein and cholesterol.
Hemoglobin molecule is made up of four protein chains with a heme group attached to each .
However in all these processes, enzymes which are protein in nature are employed but it is only creation of amino acids that does not need protein as a raw material.
The theory that is fundamental to all organism is the
survival of the fittest. This is theorized by Charles Darwin. Living things can
survive if they can easily adapt to changes in the environment. For example,
the cat can produce offsprings that many. Only a few can survive when they grow
up.
B. wellness is related to balanced improvement in all six dimensions of health
