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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In which one of the following, the genus name, its two characters and its phylum are not correctly matched, whereas the remining three are correct?

Genus Name    Two characters Phylum
1. Pila (i) Body segmented
(ii) Mouth with Radula
Mollusca
2. Asterias (i) Spiny skinned
(ii) Water vascular system
Echinodermata
3. Sycon (i) Pore bearing
(ii) Canal system
Porifera
4. Periplaneta (i) Jointed appendages
(ii) Chitinous exoskeleton
Arthropoda
Subtopic:  Phylum Mollusca |
 66%
From NCERT
NEET - 2012
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What will you look to identify the sex of the following?

1. Male frog – a copulatory pad on the first digit of the hind limb
2. Female cockroach – anal cerci 
3. Male shark – claspers bone on pelvic fins
4. Female Ascaris – sharply curved posterior end
Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 57%
From NCERT
NEET - 2011
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In which one of the following, the genus name, its two characters and its class/phylum are correctly matched?

Genus Name    Two characters Class/Phylum
1. Salamandra   (i) A tympanum represents ear    Amphibia
  (ii)    Fertilization is external
2. Pteropus (i) Skin possesses hair Mammalia
  (ii) oviparous
3. Aurelia (i) Cnidoblasts Coelenterata
  (ii) Organ level of organization
4. Ascaris (i) Body segmented Annelida
  (ii) Males and Females distinct
Subtopic:  Study of Amphibians |
 65%
From NCERT
NEET - 2011
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One example of animals having a single opening to the outside that serves both as mouth as well as anus is

(1) Octopus

(2) Asterias

(3) Ascidia

(4) Fasciola

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 69%
From NCERT
NEET - 2010
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Which one of the following statements about all the four of Spongilla, leech, dolphin and penguin is correct?

1. Penguin is homeothermic while the remaining three are poikilothermic
2. leech is a fresh water form while all others are marine
3. Spongilla has special collared cells called choanocytes, not found in the remaining three
4. All are bilaterally symmetrical
Subtopic:  Phylum Porifera |
 82%
From NCERT
NEET - 2010
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