a hetertroph
Autotroph
it is a Heterotroph
Heterotroph
they are autotroph autotrophs are organisms that produce there own food
it's an autotroph because autotrophs don't consume other animals or things in order to get energy, and a rose bush does not eat anything, but gets energy in the form of ATP.
The classification of a Sea Urchin is Echinoidea
sea urchin
I think it is a heterotroph. It does not make food. And it consumes dissoved oxygen Watch "MANNY AND LOLA" on facebuk
A sea urchin does move, but not very frequently.
because the crab needs the sea urchin for protection and the sea urchin needs the crab for food
Ummm...it's the thing from which a sea urchin hatches?