First slide
Basis of Classification
Question

Which of the following exhibits the lowest the level of organisation?

Easy
Solution

Sycon (Scypha) belongs to Porifera. It exhibits cellular level of organisation. 

Gorgonia (Cnidaria) - Tissue grade

Ctenoplana (Ctenophora) - Tissue grade

Fasciola (Platyhelminthes) - Organ grade

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