DDT is used to repel and kill disease carrying mosquitos <span />
<h2><u>Answer</u> : </h2>
Proteins are basic nutrients comprising biomolecules, which are made up of long chains of Amino acids.
They have various functions in our body :
- they make up our hair, nails, bones etc
- they helps in recovery of damaged tissues (therefore known as body - building food)
- the structure and functions of protein depends on base sequence of nucleotides in the DNA coding for that specific protein.

An acid; because anything below the number 7 i considered acid while numbers above 7 is base
They both hunt for food and will ruthlessly kill you before you can cry, "MAMA!"
Answer: A
Explanation:
"That's what evolution is all about: tiny changes in organisms of a species over a huge amount of time."