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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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Identify the figures A, B, C, and D and select the correct option.
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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 |
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Consider the following statements (A - C) each with two blanks.
A. Animals like Hydra and jelly fish depict (i)___ symmetry whereas earthworm and leech show (ii)____ symmetry.
B. In (iii)____ and (iv)_____ digestive tract has only single opening (mouth) and is said to be incomplete.
C. Trichinella (Trichina worm) Is a cosmopolitan (v)_____ parasite whereas Fasciola, (liver fluke) lives in the bile ducts of the liver of (vi)____.
Which one of the following options, correctly fills any two statements?
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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 |
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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?
