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%
From NCERT
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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%
From NCERT
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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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Which of the following represents order of 'Horse'?

(1) Equidae

(2) Perissodactyla

(3) Caballus

(4) Ferus

Subtopic:  Study of Aves & Mammals |
NEET - 2017
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An important characteristic that hemichordates share with chordates is

(1) absence of notochord

(2) ventral tubular nerve cord

(3) pharynx with gill slits

(4) pharynx without gill slits

Subtopic:  Phylum Hemichordata | Phylum Chordata |
 59%
NEET - 2017
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Which among these is the correct combination of aquatic mammals?

(1) Seals, Dolphins, Sharks

(2) Dolphins, Seals, Trygon

(3) Whales, Dolphins, Seals

(4) Trygon, Whales, Seals

Subtopic:  Study of Aves & Mammals |
 74%
NEET - 2017
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In case of poriferans, the spongocoel is lined with flagellated cells called

1. ostia

2. oscula

3. choanocytes

4. mesenchymal cells

Subtopic:  Phylum Porifera |
 87%
From NCERT
NEET - 2017
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