- 1(current)
Q. No.Identify the incorrectly matched pair:
|
Population interaction |
Species A |
Species B |
|
|
1. |
Mutualism |
+ |
+ |
|
2. |
Predation |
+ |
- |
|
3. |
Parasitism |
- |
- |
|
4. |
Commensalism |
+ |
0 |
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| Statement I: | Parasitism has evolved in many taxonomic groups from plants to higher vertebrates. |
| Statement II: | Many parasites have evolved to be host-specific and both tend to co-evolve. |
| Statement III: | All parasites have only one primary and one intermediate host. |
| Statement IV: | Only a few of the parasites harm their hosts. |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
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I: Lice on humans and ticks on dogs
II: Marine fish infested with ectoparasitic copepods
III: Female Anopheles biting human beings
IV: Tapeworm in the human alimentary canal
| 1. | Only I and II | 2. | Only III and IV |
| 3. | Only I and III | 4. | Only II and IV |
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| Statement I: | The morphological and anatomical features of endoparasites are greatly simplified but their reproductive potential is very high. |
| Statement II: | Unlike ectoparasites, endoparasites live inside the host body at different sites and their life cycles are more complex. |
2. Only Statement II is correct
3. Both Statement I and Statement II are correct
4. Neither Statement I nor Statement II is correct
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The human liver fluke depends on two intermediate hosts that are:
1. A crustacean and a fish
2. A snail and a fish
3. An echinoderm and a fish
4. Fishes of two different species
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Cuckoos laying their eggs in the nests of crow is an example of:
| 1. | Ectoparasitism | 2. | Endopararsitism |
| 3. | Hyperparasitism | 4. | Brood parasitism |
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All the following relations are examples of commensalism except:
1. Sea anemone and clown fish
2. Cattle egret and grazing cattle
3. Barnacles growing on the back of whale
4. Cuscuta growing on hedge plants
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- 1(current)
Q. No.
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