Chapter nine,section 5 in your textbook page 149
Answer:
In my opinion it is the main control center of the body.
C. octopi are invertebrates and fish are vertebrates.
Answer: B, C, E
Explanation:
We breathe in oxygen, which travels to the alveoli in our lungs. The alveoli "gives" oxygen to the capillaries, which carry blood. The capillaries "give" its carbon dioxide (which is what oxygen becomes when used by our body) to the alveoli. The carbon dioxide travel back out when we exhale. Although, the air we breathe out has some oxygen content.
