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Q. No.The type of circulatory system in which the blood is pumped out of the heart and the cells and tissues are directly bathed in it is found in all the following except:
1. Arthropods
2. Hemichordates
3. Most molluscs
4. Annelids
Subtopic: Basis of Classification |
65%
From NCERT
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Members of Phylum Platyhelminthes typically have bodies that are ____ compressed.
1. dorso-laterally
2. bilaterally
3. ventro-laterally
4. dorso-ventrally
1. dorso-laterally
2. bilaterally
3. ventro-laterally
4. dorso-ventrally
Subtopic: Phylum Ctenophora & Platyhelminthes |
88%
From NCERT
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How many of the given statements regarding members of Porifera are correct?
1. 2
2. 3
3. 4
4. 5
| I: | They are exclusively marine. |
| II: | They have cellular level of organisation. |
| III: | They have a water vascular system with tube feet. |
| IV: | Digestion is intracellular. |
| V: | Fertilisation is external and development is direct. |
1. 2
2. 3
3. 4
4. 5
Subtopic: Phylum Porifera |
58%
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 | Branchiostoma | P | Notochord persisting in adult |
| B | Ascidia | Q | Notochord present only in larval tail |
| C | Pristis | R | Cartilaginous endoskeleton |
| D | Catla | S | Bone endoskeleton |
Codes:
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | P | Q | S | R |
| 3. | Q | P | R | S |
| 4. | Q | P | S | R |
Subtopic: Phylum Chordata | Comparative study of Cartilagenous & Bony Fishes |
76%
From NCERT
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Cyclostomes:
I: are marine but migrate for spawning to fresh water.
II: die within a few days of spawning.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
I: are marine but migrate for spawning to fresh water.
II: die within a few days of spawning.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Phylum Chordata |
92%
From NCERT
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A water vascular system is characteristically seen in the members of Phylum:
1. Porifera
2. Echinodermata
3. Ctenophora
4. Mollusca
1. Porifera
2. Echinodermata
3. Ctenophora
4. Mollusca
Subtopic: Phylum Echinodermata |
87%
From NCERT
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The cell shown in the given figure defines animals belonging to:
1. Porifera
2. Cnidaria
3. Platyhelminthes
4. Urochordates
1. Porifera
2. Cnidaria
3. Platyhelminthes
4. Urochordates
Subtopic: Phylum Coelenterata |
95%
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:
match from the codes given:
| Column I | Column II | ||
| A | Limulus | P | Gregarious pest |
| B | Locusta | Q | Living fossil |
| C | Ancylostoma | R | Filaria worm |
| D | Wuchereria | S | Hookworm |
Codes:
| A | B | C | D | |
| 1. | Q | P | S | R |
| 2. | P | Q | S | R |
| 3. | P | Q | R | S |
| 4. | Q | P | R | S |
Subtopic: Phylum Aschelminthes | Phylum Arthropoda |
89%
From NCERT
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All the following are correct for amphibians except:
1. Skin is moist and without scales.
2. A tympanum represents the ear.
3. Eyes lack eyelids.
4. Heart is three chambered.
1. Skin is moist and without scales.
2. A tympanum represents the ear.
3. Eyes lack eyelids.
4. Heart is three chambered.
Subtopic: Study of Amphibians |
79%
From NCERT
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Over two-thirds of all named species on earth are:
1. Molluscs
2. Arthropods
3. Chordates
4. Sponges
1. Molluscs
2. Arthropods
3. Chordates
4. Sponges
Subtopic: Phylum Arthropoda |
95%
From NCERT
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