First slide

Classification of Animals

Question

Which of these pairs of organisms are bilaterally symmetrical and triplobastic?

Easy

A

Ascaris, Planaria
B

Spongilla, Limulus
C

Fasciola, Echinus
D

Hirudinaria, Ctenoplana

Solution

Ascaris (Aschelminthes), Planaria, Fasciola (Platyhelminthes), Limulus (Arthropoda), Hirudinaria (Annelida) - Triploblastic and bilaterally symmetrical.
Echinus (Echinodermata) - Triploblastic, radially symmetrical.
Ctenoplana (Cnidaria) - Diploblastic, radially symmetrical.
Spongilla (Porifera) - Mostly asymmetrical. Cellular level of organisation (hence neither diplo nor triploblastic).

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App