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 |
 68%
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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 |
 71%
From NCERT
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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 |
 82%
From NCERT
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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 |
 71%
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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 |
 60%
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Operculum and an air bladder are present in :

1. Clarias

2. Pristis

3. Trygon

4. Carcohrodon

Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 73%
From NCERT
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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 |
 60%
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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 |
 71%
From NCERT
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Which of the following is not an arthropod characteristic?

1. Jointed appendages

2. Non-segmented bodies

3. Periodic moulting

4. Articulated exoskeleton

Subtopic:  Phylum Arthropoda |
 77%
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Amniotes include all except:

(1) Amphibians

(2) Reptiles

(3) Birds

(4) Mammals

Subtopic:  General Introduction: Vertebrates & Agnatha |
 61%
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