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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Choose the correct statements.

1. All mammals are viviparous

2. All cyclostomes do not possess jaws and paired fins

3. All reptiles have a three-chambered heart

4. All Pisces have gills covered by an operculum

Subtopic:  General Introduction: Vertebrates & Agnatha |
 74%
From NCERT
NEET - 2016
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Which of the following characteristic features always holds true for the corresponding group of animals?

1. Viviparous Mammalia
2. Possess a mouth with an upper and a lower jaw Chordata
3.    3-chambered heart with one incompletely divided ventricle    Reptilia
4. Cartilaginous – endoskeleton Chondrichthyes
Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 76%
From NCERT
NEET - 2016
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Which one of the following characteristics is not shared by birds and mammals?

(1) Breathing using lungs

(2) Viviparity

(3) Warm blooded nature

(4) Ossified endoskeleton

Subtopic:  Study of Aves & Mammals |
 60%
From NCERT
NEET - 2016
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Which of the following features is not present in the phylum – Arthropoda?

(1) Metameric segmentation

(2) Parapodia

(3) Jointed appendages

(4) Chitinous exoskeleton

Subtopic:  Phylum Arthropoda |
 79%
From NCERT
NEET - 2016
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Select the taxon mentioned that represents both marine and freshwater species

(1) Echinoderms

(2) Ctenophora

(3) Cephalochordata

(4) Cnidaria

Subtopic:  Phylum Coelenterata |
 56%
NEET - 2014
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Which one of the following living organisms completely lacks a cell wall?

(1) Cyanobacteria

(2) Sea-fan (Gorgonia)

(3) Saccharomyces

(4) Blue-green algae

Subtopic:  Phylum Coelenterata |
 63%
NEET - 2014
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Planaria posses high capacity of

(1) metamorphosis

(2) regeneration

(3) alternation of generation

(4) bioluminescence

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 92%
From NCERT
NEET - 2014
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A marine cartilaginous fish that can produce electric current is

(1) Pristis

(2) Torpedo

(3) Trygon

(4) Scoliodon

Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 77%
From NCERT
NEET - 2014
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Infection of Ascaris usually occurs by

(1) drinking water containing egg of Ascaris

(2) eating imperfectly cooked pork

(3) tse-tse fly

(4) mosquito bite

Subtopic:  Phylum Aschelminthes |
 71%
NEET - 2013
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