Answer:
What to do during a flood
Explanation:
Hairs are mostly fibrous proteins and are composed of keratin, and also the main constituent of skin, nails, wool, woof, feathers etc.
Keratin is the essential fibrous protein which has a structural and protective functions in the epithelium.
<span>Enzymes lower the activation rate of a reaction, thus lowering the energy needed to start a reaction.</span>
Low birth weight, premature birth, miscarriage (fetus dies before the 20th week of pregnancy), birth defects (hearing issues, or heart defect)
Should be A. Species have changed over time.