Answer:
ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation
External skeleton is the correct answer. Hope this helps out !
I think the answer would be 1,or 2
I think the answer is Extinction
Answer: ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities
Explanation: