It carries signals for the body through nerves (answer 3)
If you are wanting to know what that is in English, the answer is 'How do I intentionally vomit?' If you want to know how to do that, I guess stick your finger down your throat.
Compare the limbs of different organisms goes in left box. compares fossilized structures to living organisms left box.
other 2 go in the right box hope this helped(:
Answer:
active transport
Explanation:
it involves movement of ions
