Answer:
Convergent evolution; even though these animals are all different classes, they have developed similar features due to the environments they live in. We call these analogous features and the means by which they develop convergent evolution.
I believe the answer to your question is the cortex
Solid because it maintains their shape and is rigid
in this case the answer would be letter "D"
Meiosis ll must take place because each of our new cells still has too much DNA.
(Hope this helps!!)
