The symmetry exhibited in cnidarians is ______.

(a)

Radial

(b)

Bilateral

(c)

Pentamerous radial

(d)

Asymmetrical

Sea anemone belongs to phylum ________.

(a)

Protozoa

(b)

Porifera

(c)

Coelenterata

(d)

Echinodermata

The excretory cells that are found in platyhelminthes are _____.

(a)

Protonephridia

(b)

Flame cells

(c)

Solenocytes

(d)

All of these

Parenchymula is the larval stage of Phylum _______________

(a)

Cnidaria

(b)

Porifera

(c)

Coelenterata

(d)

Platyhelminthes

Identify the feature that is unique to planaria

(a)

Parasitic

(b)

Polyembryony

(c)

Regeneration

(d)

Pseudo segmentation

The first segmented animals to evolve were the __________

(a)

Annelids

(b)

Arthropods

(c)

Molluscs

(d)

Echinoderms

Presence of a copper-containing respiratory pigment is seen in Phylum ________________ .

(a)

Echinodermata

(b)

Chordata

(c)

Mollusca

(d)

Aschelminthes

_____________show anadromous migration.

(a)

Bony fishes

(b)

Cyclostomes

(c)

Cartilaginous fishes

(d)

Blue whale

For the first time development of four-chambered heart is seen in______________

(a)

Tunicates

(b)

Urochordates

(c)

Reptilia

(d)

Man

In Aves____________ is absent.

(a)

Ureter

(b)

Kidney

(c)

Urinary bladder

(d)

Ovary