Identify the option where all the columns are not correctly matched:

	Animal	Phylum	Features
(1)	Pleurobrachia	Ctenophora	Comb plates, Only sexual reproduction
(2)	Loligo	Mollusca	Radula, Dioecious
(3)	Balanoglossus	Hemichordata	Respiration by gills, Proboscis gland
(4)	Ascidia	Chordata	Marine, Notochord persistent throughout life

Which of the following is not an Echinoderm character?

(1) Exclusively marine

(2) Radial symmetry in adults

(3) Protostome embryonic development

(4) Water vascular system

Birds are not characterized by:
 

Echinoderms are not characterized by:

1. An absence of excretory system

2. Bisexual animals

3. Usually external fertilization

4. Indirect development with free swimming larva

Operculum and an air bladder is present in :

1. Clarias

2. Pristis

3. Trygon

4. Carcohrodon

Identify the incorrectly matched pair:

Pteropus is a/an:

1. Limbless amphibian

2. Extinct reptile that evolved into mammals

3. Bony fish that migrates from sea water to fresh water for breeding

4. Mammal with flight

The character that gives the Phylum Chordata its name is shown by:

The structure shown in the given diagram is characteristically seen in the Phylum:

  
1. Porifera
2. Ctenophora
3. Cnidaria
4. Molluska

An animal with the following body wall organization will not have: