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  • 1(current)
Q. No.

Identify the incorrectly matched pair:

Population interaction

Species A

Species B

1.

Mutualism

+

+

2.

Predation

+

-

3.

Parasitism

-

-

4.

Commensalism

+

0
Subtopic:  Population Interactions: Predation | Population Interactions: Parasitism |
 94%
From NCERT
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The number of correct statements amongst the given is:
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
Subtopic:  Population Interactions: Parasitism |
 72%
From NCERT
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The given picture shows Cascuta, commonly found growing on hedge plants. Such relationship is also exemplified by:
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
Subtopic:  Population Interactions: Parasitism |
 79%
From NCERT
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Consider the two statements given below:
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.
1. Only Statement I is correct
2. Only Statement II is correct
3. Both Statement I and Statement II are correct
4. Neither Statement I nor Statement II is correct
Subtopic:  Population Interactions: Parasitism |
 83%
From NCERT
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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
Subtopic:  Population Interactions: Parasitism |
 87%
From NCERT
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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
Subtopic:  Population Interactions: Parasitism |
 93%
From NCERT
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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
Subtopic:  Population Interactions: Competition | Population Interactions: Parasitism | Population Interactions: Commensalism, Protocooperation & Mutualism |
 85%
From NCERT
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