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Earn 100
Given below are three statements regarding Aschelminthes.
(i) They are bilaterally symmetrical and triploblastic.
(ii) They are dioecious.
(iii) All are plant or animal parasites.
Select the option that has both the correct statements.
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Important Questions on Animal Kingdom
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In which of the following, segmentation in the body is first observed?
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Match column I with II and select the correct option from the given codes.
| I | II | ||
|---|---|---|---|
| (a) | Choanocytes | (i) | Platyhelminthes |
| (b) | Cnidoblasts | (ii) | Ctenophora |
| (c) | Flame cells | (iii) | Porifera |
| (d) | Nephridia | (iv) | Coelenterata |
| (e) | Comb plates | (v) | Annelida |
HARD
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Match Column I with II and select the correct option from the given codes.
| I | II | ||
|---|---|---|---|
| (a) | Protandry | (i) | Ovaries mature earlier than testes |
| (b) | Protogyny | (ii) | Testes mature earlier than ovaries |
| (c) | Metameric segmentation | (iii) | Scorpion |
| (d) | Radial symmetry | (iv) | Nereis |
| (e) | Book lungs | (v) | Aurelia |
MEDIUM
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Read the given statements and select the correct option.
Statement 1 Blood is colourless in most of the insects.
Statement 2 Insect blood has no role in Transport.
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What is common between earthworm and Periplaneta?
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Which of the following are examples of Arthropoda?
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Among the following organisms which is a completely non-parasitic form?
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Which one of the following features is common in silver fish, scorpion, dragonfly and prawn?
