Consider the given statements regarding competition amongst organisms:

I: Only related species can compete for the same resource
II: Competition occurs only when the resources are limiting

The correct statement/s is/are:

1. I alone 2. II alone
3. Both I and II 4. Neither I nor II

Subtopic:  Population Interactions: Competition |
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In some shallow American lakes, unrelated visiting Flamingoes and resident fishes compete for the common food which is:

1. Crustaceans 2. Zooplankton
3. Cichlid fishes 4. Prawns
Subtopic:  Population Interactions: Competition |
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A process in which the fitness of one species is significantly lower in the presence of another species, is termed as :

1. Predation 2. Parasitism
3. Competition 4. Amensalism

Subtopic:  Population Interactions: Competition |
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Abingdon tortoise in Galapagos islands became extinct within a decade after goats were introduced on the island due to:
1. Habitat fragmentation
2. Better browsing efficiency of goats
3. Predator of goat attacking tortoise
4. Virus of goats parasitizing tortoise

Subtopic:  Population Interactions: Competition |
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The ‘Competitive Exclusion Principle’ was given by:

1. Gause 2. Connell
3. Tillman 4. Paul Ehrlich
Subtopic:  Population Interactions: Competition |
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A species whose distribution is restricted to a small geographical area because of the presence of a competitively superior species, is found to expand its distributional range dramatically when the competing species is experimentally removed. This is called:

1.Competitive Exclusion2.Competitive Release
3.Competitive Supremacy4.Competitive Inclusion

Subtopic:  Population Interactions: Competition |
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“Competitive Exclusion Principle” may be true if:

1. The competing species are equally capable
2. Resource partitioning occurs
3. There is only intraspecific competition
4. Resources are limiting
Subtopic:  Population Interactions: Competition |
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One mechanism that promotes co-existence rather than exclusion amongst competing species is:

1.Periodic migration2.Hibernation and aestivation
3.Resource partitioning4.Reproductive isolation

Subtopic:  Population Interactions: Competition |
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Which of the following is not an ectoparasite?
1. Lice on humans
2. Copepods on marine fishes
3. Mistletoe on other plants
4. Female Anopheles on humans

Subtopic:  Population Interactions: Parasitism |
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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 |
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