Question

What did you observe on the skin
of the star fish?
Are there any arms and ray shaped
structure in it?
Did you find a small hole in the
middle of the star fish?​

Answer 1

Answer:

Starfish, more accurately called sea stars, are not really fish but echinoderms, which means "spiny skin" in Greek. True to their name, starfish really are covered in a spiny skin on their top sides, which is made up of two different parts: dermal branchiae and pedicellaria.