Which of the following is not a feature of Tunicates?

1. Only the larvae have notochord

2. Presence of endostyle

3. Secretion of cellulose sac

4. Larvae are voracious eaters

Consider the following sets of some animals. The set that consists of all animals belonging to the same phylum is:

1. Pinctada, Aplysia, Chaetopleura

2. Dentallium, Pila, Echinus

3. Asterias, Antedon, Ascidia

4. Adamsia, Gorgonia, Pleurobrachia

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

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:

1. Forelimbs modified into wings

2. Fully ossified endoskeleton

3. Skin dry without glands except for oil gland

4. Oviparous and external fertilization

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 are present in :

1. Clarias

2. Pristis

3. Trygon

4. Carcohrodon

Identify the incorrectly matched pair:

Pteropus is a/an:

Which of the following is not an arthropod characteristic?

1. Jointed appendages

2. Non-segmented bodies

3. Periodic moulting

4. Articulated exoskeleton