I believe the answer is Striae gravidarum. They are also known as pregnancy stretch marks, is a specific form of scarring of the skin of the abdominal area due to sudden weight gain during pregnancy. They reflect separation within the underlying connective tissue of the skin. After birth they usually fade, although they never disappear completely.
Answer:
21
Explanation:
Amino acids are the basic structural units of proteins. Our bodies contain 21 amino acids it uses to make all proteins, although books recognize only 20 amino acids. The 20 amino acids are the alphabet of proteins.
B. Frequent due to fighting between bats
:)