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Q. No.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 |
69%
From NCERT
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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%
From NCERT
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A ‘sea-horse’ is a:
1. marine bony fish
2. fresh water bony fish
3. cartilaginous fish
4. cyclostome
1. marine bony fish
2. fresh water bony fish
3. cartilaginous fish
4. cyclostome
Subtopic: Comparative study of Cartilagenous & Bony Fishes |
76%
From NCERT
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Subtopic: Phylum Chordata |
84%
From NCERT
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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
1. Porifera
2. Ctenophora
3. Echinodermata
4. Hemichordata
Subtopic: Phylum Porifera |
76%
From NCERT
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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 Ctenophora & Platyhelminthes | Basis of Classification |
76%
From NCERT
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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 & Platyhelminthes |
67%
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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 |
71%
From NCERT
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Which of the following statements are NOT true for the phylum-Chordata?
1. Only (c) and (d)
2. Only (a) and (b)
3. Only (b) and (e)
4. Only (c) and (e)
| a. | In Urochordata, notochord extends from head to tail and is present throughout their life |
| b. | In Cephalochordata, notochord is present only in larval tail |
| c. | Central nervous system is dorsal and hollow |
| d. | Anus is terminal |
| e. | Heart, if present, is ventral |
1. Only (c) and (d)
2. Only (a) and (b)
3. Only (b) and (e)
4. Only (c) and (e)
Subtopic: Phylum Chordata |
77%
From NCERT
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Match List - I with List – II:
Choose the correct answer from the options given below.
| List – I | List – II | ||
| (a) | Metamerism | (i) | Ctenophora |
| (b) | Canal system | (ii) | Cnidaria |
| (c) | Comb Plates | (iii) | Annelida |
| (d) | Metagenesis | (iv) | Porifera |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (ii) | (i) |
| 2. | (iv) | (i) | (ii) | (iii) |
| 3. | (iv) | (iii) | (i) | (ii) |
| 4. | (iii) | (iv) | (i) | (ii) |
Subtopic: Phylum Porifera | Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes | Phylum Annelida |
84%
From NCERT
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