From the given choices above, the portion that is not readily penetrated by the sunlight is the river's or the stream's mouth. The plant life usually are on the surface of the water. The middle portion is occupied by the fish and other aquatic lives.
<h2>
Answer:</h2>
<em><u>Amino acids are joined together by peptide bonds, in which the amino or NH2 of one amino acid bonds to the carboxyl (acid) or COOH group of another amino acid to form Proteins.</u></em>
I believe the correct answer is chromosome.
<h2>
Explanation:</h2>
We inherit 23 chromosomes from our mother and another 23 chromosome pairs from our father. You have to inherit a defective chromosome for you to get the mutation. This is what is called germ line mutation usually carried in the sperm or ovum. Of the 23 chromosomes, 22 are autosomal and 1 is chromosomal meaning of the 23 one of them is X and another one is . You get the Y from your father and the X from your mother.
Answer: There are 206 bones in the human adult body, but 270 bones at birth.
Animals use protein for several roles in the body, such as building and repairing muscles and other body tissues. It is needed to form new skin cells, grow hair, build muscle tissue, and more. It also assists in creating body chemicals like hormones and enzymes that are needed for normal function. It provides energy (like carbohydrates do) and keeps the immune system strong.
