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Q. No.Match each item in Column I with one in Column II and select the correct match from the codes given:
Column I
[Phylum]
Column II
[Characteristic]
A
Porifera
P
Water vascular system
B
Aschelminthes
Q
Canal system
C
Echinodermata
R
Pseudocoelom
D
Hemichordata
S
Stomochord
Codes:
A
B
C
D
1.
Q
R
P
S
2.
S
R
Q
P
3.
Q
S
R
P
4.
R
S
P
Q
[Phylum]
[Characteristic]
Subtopic: Phylum Porifera | Phylum Aschelminthes | Phylum Echinodermata | Phylum Hemichordata |
92%
From NCERT
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Identify a vertebrate chordate amongst the following:
1. Ascidia
2. Doliolum
3. Brannchiostoma
4. Petromyzon
1. Ascidia
2. Doliolum
3. Brannchiostoma
4. Petromyzon
Subtopic: Phylum Chordata |
74%
From NCERT
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A | Radula | P | Osteichthyes |
| B | Operculum | Q | Molluska |
| C | Flame cell | R | Flat worms |
| D | Hair | S | Mammalia |
| A | B | C | D | |
| 1. | P | S | Q | R |
| 2. | Q | P | R | S |
| 3. | Q | R | P | S |
| 4. | R | Q | S | P |
Subtopic: Phylum Ctenophora & Platyhelminthes | Phylum Mollusca | Phylum Chordata | Comparative study of Cartilagenous & Bony Fishes | Study of Aves & Mammals |
94%
From NCERT
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The cell shown in the figure is used in:
| 1. | capturing prey in Cnidarians |
| 2. | generating water current in sponges |
| 3. | osmoregulation in rotifers |
| 4. | movement in ctenophores |
Subtopic: Phylum Coelenterata |
92%
From NCERT
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Notochord is a:
| 1. | endodermally derived rod-like structure formed on the dorsal side during embryonic development in some animals. |
| 2. | endodermally derived rod-like structure formed on the ventral side during embryonic development in some animals. |
| 3. | mesodermally derived rod-like structure formed on the dorsal side during embryonic development in some animals. |
| 4. | mesodermally derived rod-like structure formed on the ventral side during embryonic development in some animals. |
Subtopic: Phylum Chordata |
82%
From NCERT
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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%
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 |
77%
From NCERT
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Subtopic: Phylum Chordata |
85%
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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