The symmetry exhibited in cnidarians is ______.

(a)

Radial

(b)

Bilateral

(c)

Pentamerous radial

(d)

Asymmetrical

The excretory cells that are found in platyhelminthes are _____.

(a)

Protonephridia

(b)

Flame cells

(c)

Solenocytes

(d)

All of these

Metameric segmentation is the main feature of ______.

(a)

Annelida

(b)

Echinodermata 

(c)

Arthropoda

(d)

Coelenterata

In Pheretima locomotion occurs with help of ______.

(a)

circular muscles

(b)

longitudinal muscles and setae

(c)

circular, longitudinal muscles and setae

(d)

parapodia

Which of the following have the highest number of species in nature?

(a)

Insects

(b)

Birds

(c)

Angiosperms

(d)

Fungi

Choose the term that does not belong in the following group and explain why it does not belong?
Notochord, cephalisation, dorsal nerve cord and radial symmetry.

In which phyla is the larva trochopore found?

List three features that characterise bony fishes

List the unique features of bird's endoskeleton.

Explain spongocoel.

Differentiate Polyp and Medusa

What are comb Jellies or sea walnuts

Write three salient features of Cephalochordates.

Could the number of eggs or young ones produced by an oviparous and viviparous female be equal? Why?