Answer:
a. solution
Explanation:
a solution always consists of a soluble and a solvent.
False.
Extinction = Behaviors that are not reinforced will become weaker (occur less often).
Answer:
I think this is how it goes
1. Nose/mouth
2. Pharynx
3. Larynx
3.Trachea
4.Bronchi
5.Alveoli
6.Heart
7.Blood Vessels
Explanation: it starts out from the nose then continues down to through the lung system then the heart to the blood stream
