What would not be true for cyclostomes?

1. All are endoparasites on some fishes.
2. They have aa circular mouth without jaw.
3. Body is devoid of scales and paired fins.
4. Circulation is of closed type.

Subtopic:  Phylum Chordata |
 70%
Level 2: 60%+
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Homoiothermy and a four chambered muscular heart is seen in:

I: Mammals
II: Crocodiles
III: Birds

1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III

Subtopic:  Study of Aves & Mammals |
 68%
Level 2: 60%+
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A ‘sea-horse’ is a:
1. marine bony fish
2. fresh water bony fish
3. cartilaginous fish
4. cyclostome

 
Subtopic:  Comparative study of Cartilagenous & Bony Fishes | Class Osteichthyes |
 77%
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All chordates have:
1. scales covering their skin
2. jaws
3. notochord
4. vertebral column
Subtopic:  Phylum Chordata |
 85%
Level 1: 80%+
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The members of which of the following animal phyla are not exclusively marine?
1. Porifera
2. Ctenophora
3. Echinodermata
4. Hemichordata
Subtopic:  Phylum Porifera |
 76%
Level 2: 60%+
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Unlike roundworms, flatworms:
1. are triploblastic
2. exhibit bilateral symmetry
3. do not have a coelom
4. reproduce only by sexual methods

Subtopic:  Phylum Platyhelminthes |
 77%
Level 2: 60%+
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The human liver fluke:
1. is a cestode and requires two intermediate hosts – a cow and a pig
2. is a trematode and requires two intermediate hosts – a chicken and a fish
3. is a nematode and requires two intermediate hosts – a fish and a pig
4. is a trematode and requires two intermediate hosts – a snail and a fish
Subtopic:  Phylum Ctenophora |
 64%
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Regarding birds, the number of correct statements from the statements given will be:

I: The forelimbs are modified into wings.
II: Flightless birds do not have feathers.
III: Skin is dry without glands except the oil gland at the base of the tail.
IV: Endoskeleton is fully ossified (bony) and the long bones are hollow with air cavities (pneumatic).
V: The hind limbs generally have scales.

 
1. 2
2. 3
3. 4
4. 5

Subtopic:  Study of Aves & Mammals |
 72%
Level 2: 60%+
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Match List I with List II.
List I List II
A. Taenia I. Nephridia
B. Paramoecium II. Contractile vacuole
C. Periplaneta III. Flame cells
D. Pheretima  IV. Urecose gland
Choose the correct answer from the options given below:
Options: A B C D
1. II I IV III
2. I II III IV
3. I II IV III
4. III II IV I
Subtopic:  Phylum Coelenterata | Phylum Ctenophora | Phylum Annelida | Phylum Arthropoda |
 83%
Level 1: 80%+
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Radial symmetry is not found in adults of phylum__________
1. Echinodermata D 2. Ctenophora
3. Hemichordata 4. Coelenterata
Subtopic:  Phylum Hemichordata |
 63%
Level 2: 60%+
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