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Q. No.Insects belong to the phylum Arthropoda. Their exoskeleton is primarily composed of:
1. Calcium carbonate
2. Chitin
3. Silica
4. Keratin
Subtopic: Phylum Arthropoda |
94%
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 below
Codes
| Column I | Column II | ||
| A. | Sycon | P. | Scypha |
| B. | Spongilla | Q. | Fresh water sponge |
| C. | Euspongia | R. | Both sponge |
Codes
| A | B | C | |
| 1. | P | Q | R |
| 2. | R | Q | P |
| 3. | P | R | Q |
| 4. | Q | P | R |
Subtopic: Phylum Porifera |
74%
From NCERT
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Pleurobrachia and Ctenoplana belong to:
1. Porifera
2. Cnidaria
3. Ctenophora
4. Platyhelminthes
1. Porifera
2. Cnidaria
3. Ctenophora
4. Platyhelminthes
Subtopic: Phylum Ctenophora & Platyhelminthes |
92%
From NCERT
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Fasciola is
1. a nematode
2. liver fluke
3. blood sucking leech
4. a model organism to study genetics
1. a nematode
2. liver fluke
3. blood sucking leech
4. a model organism to study genetics
Subtopic: Phylum Ctenophora & Platyhelminthes |
87%
From NCERT
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In roundworms:
| Statement I: | Males are diploblastic; females are triploblastic |
| Statement II: | Generally, males are longer than females |
| 1. | Statement I is correct and Statement II is incorrect |
| 2. | Statement I is incorrect and Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: Phylum Aschelminthes |
83%
From NCERT
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Match the following:
Codes
| Column I | Column II | ||
| A. | Ascaris | P. | Filaria worm |
| B. | Wuchereria | Q. | Roundworm |
| C. | Ancylostoma | R. | Hookworm |
| A | B | C | |
| 1. | R | Q | P |
| 2. | R | P | Q |
| 3. | Q | R | P |
| 4. | Q | P | R |
Subtopic: Phylum Aschelminthes |
82%
From NCERT
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No annelid is :
I: Parasitic
II: Diploblastic
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
I: Parasitic
II: Diploblastic
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Phylum Annelida |
71%
From NCERT
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Subtopic: Phylum Annelida |
88%
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Which of the following are not used in respiration in arthropoda?
1. Gills
2. Book lungs
3. Tracheal system
4. Malpighian tubules
1. Gills
2. Book lungs
3. Tracheal system
4. Malpighian tubules
Subtopic: Phylum Arthropoda |
66%
From NCERT
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Consider the two statements:
| Statement I: | Echinoderms are spiny skinned animals |
| Statement II: | They have an endoskeleton made of calcareous ossicles |
| 1. | Statement I is correct and Statement II is incorrect |
| 2. | Statement I is incorrect and Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: Phylum Echinodermata |
75%
From NCERT
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