Question 13
Identify a member of Porifera
(a) Spongilla
(b) Euglena
(c) Penicillium
(d) Hydra
Ans) (a) Spongilla
Spongilla is an organism with pores or holes and hence it belongs to Porifera.
These are multicellular organisms which are sessile/sedentary in nature.
Most of them are marine while a few are freshwater forms.
Body is cylindrical, asymmetrical or has radial symmetry