<span>The alleles that everyone has.
Hope this helps!
-Payshence xoxo</span>
Answer:
It is circulatory system and the digestive system.
Explanation:
Dna gives an automatic trace, ur dna is original and no one else has it so it’s easier to track
The cause of the change in insect characteristics occurred when a few survivors of the 1st spray became resistant to the insecticide. When they had offspring, those insect babies are born with the trait that made them resistant to insecticide. This occurs when the parents pass on the trait to their offspring. The end result is that the insecticide is less effective and more insects survive.
