Answer:
trachea
Explanation:
it is a tube that connects troat and bronch
The temp. affects on how quickly these chemical muscles reaction can occur
Answer:
Its been used by humans to take the best traits from a species and pass them on like bigger bodies in cows for more meat and bigger muscles in horses for faster racing potential.
The answer is B. Natural selection will find a way to affect one, then that one will affect many others.
