The cell shown in the given figure defines animals belonging to:

1. Porifera
2. Cnidaria
3. Platyhelminthes
4. Urochordates

Subtopic:  Phylum Coelenterata |
 95%
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Match each item in Column I with one in Column II and select the correct 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 |
 90%
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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.
Subtopic:  Study of Amphibians |
 80%
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Over two-thirds of all named species on earth are:
1. Molluscs
2. Arthropods
3. Chordates
4. Sponges
Subtopic:  Phylum Arthropoda |
 95%
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Parapodia are found in:
1. aquatic molluscs, and help in respiration.
2. benthic echinoderms, and help in gathering food.
3. Ctenophores, and help in locomotion.
4. aquatic annelids, and help in swimming.
Subtopic:  Phylum Annelida |
 89%
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The body is unsegmented but with a distinct head, muscular foot and visceral hump in:
1. Hemichordates
2. Urochordates
3. Molluscs
4. Cephalochordates
Subtopic:  Phylum Annelida |
 94%
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Choanocyte is a collared flagellated cell found in sponges. The collar of this cell is made of:
1. microvilli
2. fibrils
3. tentacles
4. canals
Subtopic:  Phylum Porifera |
From NCERT
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Consider the two statements:
Statement I: An undifferentiated layer, mesoglea, is present in between the ectoderm and the mesoderm in diploblastic organisms.
Statement II: A third germinal layer, endoderm, in between the ectoderm and mesoderm, is present in triploblastic animals.
1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
Subtopic:  Basis of Classification |
 57%
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Match each item in Column I with one in Column II and select
the correct match from the codes given:
Column I Column II
A Cnidaria P Metamerism
B Mollusca Q Tube feet
C Annelida R Metagenesis
D Echinodermata S Radula

Codes:
 
A B C D
1. R Q P S
2. P Q R S
3. R S P Q
4. P S R Q
Subtopic:  Phylum Coelenterata | Phylum Annelida | Phylum Mollusca | Phylum Echinodermata |
 88%
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Animals can be categorised on the basis of their symmetry. Which of the following statements are correct?
I: Sponges are mostly asymmetrical.
II: Coelenterates, ctenophores and adult echinoderms have radial symmetry.
III: Annelids and  arthropods exhibit bilateral symmetry.
 
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic:  Phylum Porifera | Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes | Phylum Annelida | Phylum Arthropoda | Basis of Classification |
 89%
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