Q. No.Consider the two statements:
Statement I:
Planaria is a free-living flatworm and possesses high regeneration capacity.
Statement II:
Hooks and suckers are present in parasitic flatworms.
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
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| 1. | Catching food and digesting it |
| 2. | Exchange of gases |
| 3. | Excretion and Osmoregulation |
| 4. | Regeneration of lost body parts |
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| 1. | having two germ layers instead of three |
| 2. | lacking a coelom |
| 3. | showing bioluminescence |
| 4. | having a complete digestive system |
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| I: | has dorso-ventrally flattened body |
| II: | is an endoparasite in human beings |
| III: | has hooks and suckers present at its anterior end |
| 1. | Platyhelminthes | 2. | Annelida |
| 3. | Aschelminthes | 4. | Cnidaria |
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| Statement I: | Alimentary canal is complete with a well-developed muscular pharynx. |
| Statement II: | An excretory tube removes body wastes from the body cavity through the excretory pore. |
| Statement III: | They are dioecious and males are longer than females. |
| 1. | Only Statement II |
| 2. | Only Statement III |
| 3. | Only Statement I and Statement II |
| 4. | Only Statement II and Statement III |
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| 1. | Annelida | 2. | Platyhelminthes |
| 3. | Aschelminthes | 4. | Chordata |
| 1. | have a true coelom lined by embryonic mesoderm |
| 2. | have a closed circulatory system |
| 3. | do not reproduce by sexual methods |
| 4. | have a complete digestive system |
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| 1. | Aquatic annelids like Nereis possess lateral appendages, parapodia, which help in swimming. |
| 2. | Nereis is dioecious. |
| 3. | Earthworm is monoecious. |
| 4. | Hirudinaria, blood-sucking leech, is an annelid that lacks true coelom and metamerism. |
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| I: | They are bilaterally symmetrical, triploblastic, non-segmented and pseudocoelomate animals. |
| II: | Arthropoda is the largest phylum of Animalia and includes more than 90 % of all species on the earth that are named so far. |
| III: | Insects are arthropods with body consisting of head, thorax and abdomen. |
| 1. | Only I | 2. | Only I and II |
| 3. | Only III | 4. | Only II and III |
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| Column I | Column II | ||
| A. | Insect reared for producing silk | P. | Locusta |
| B. | Mosquito acting as vector for Dengue virus | Q. | Bombyx |
| C. | Gregarious pest | R. | Limulus |
| D. | Living fossil | S. | Aedes |
Codes:
| A | B | C | D | |
| 1. | Q | S | P | R |
| 2. | Q | S | R | P |
| 3. | P | Q | R | S |
| 4. | R | P | Q | S |
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