First slide

Basis of Classification

Question

Which of the following exhibits the highest level of organisation?

Easy

A

Pheretima
B

Meandrina
C

Spongilla
D

Ctenoplana

Solution

Pheretima (Annelida) exhibits organ system of organisation.
Spongilla (Porifera) exhibits cellular level of organisation.
Meandrina (Cnidaria) and Ctenoplana (Ctenophora) exhibit tissue level of organisation.

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