Well a person breathes harder when he/she exercizing because you are working hard and your body is not used to it so your trying to pass more air through the lungs
Answer:
Recombinant DNA
Explanation:
Recombinant DNA can be used to change the genetic makeup of a cell, as in adding a gene to make a bacterial cell produce insulin.
Only when you are in love with a person... Otherwise they seem normal to you
By having different interests and hormones
The answer is A. Coral is dependent on clear water where the sun easily hits the photosynthetic organisms living within.