Answer:
B
Explanation:
Competition is defined as an activity done by two opposing sides, both of which are trying to do better than the other.
NACL is the correct answer
Answer:
Elastase.
Explanation:
Collagen, keratin, and elastin are fibrilar proteins.
Elastin is a globular protein, actually an enzyme, that breaks down proteins, such as elastin. It is a protease. In humans, there are eight different genes for the production of elastase. Elastase also has an important immunological role
.
