I would go with B & D because they change over time and they can go extinct like those big octopus in the oceans, they are rare to see in my opinion because they can blend in with other things that keeps them away from danger.
Answer:
Hard
Explanation:
it is hard because these are usually hard parts of an organism including shells, bones, teeth, woody trunk, stems, and branches.
1. Behavioral
2. Structural.
3. Structural.
4. Behavioral.
5. behavioral.
6. Functional
I did my best on these, hope it helps!
Answer: D
Explanation: i've taken bio
