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

Subtopic:  Phylum Mollusca |
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Homeothermy is exhibited by:

(1) All amniotes

(2) Birds and Mammals

(3) All dueterostomes

(4) Reptiles and Mammals

Subtopic:  Study of Aves & Mammals |
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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

Subtopic:  Phylum Chordata |
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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

Subtopic:  Phylum Echinodermata |
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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

Subtopic:  Study of Aves & Mammals |
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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

Subtopic:  Phylum Echinodermata |
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Operculum and an air bladder is present in :

(1) Clarias

(2) Pristis

(3) Trygon

(4) Carcohrodon

Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
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Identify the incorrectly matched pair:

 

Animals

Feature present in both

1.

Balanoglossus and Pinctada

Open circulatory system

2.

Branchiostoma and Ascidia

Persistent notochord

3.

Aplysia and Pheretima

True coelom

4.

Gorgonia and Pennatula

Cnidoblasts

Subtopic:  Phylum Chordata |
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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

Subtopic:  Study of Aves & Mammals |
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The character that gives the Phylum Chordata is shown by:

1. A

2. B

3. C

4. D

Subtopic:  Phylum Chordata |
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