- 1(current)
Q. No.
Abingdon tortoise got extinct from the Galapagos Islands because of:
| 1. | pollution caused by frequent visits by humans |
| 2. | a volcanic eruption causing deposition of lava |
| 3. | better browsing efficiency of introduced goats outcompeting them |
| 4. | invasion by a predator from the nearby mainland |
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The distribution of a species is found to expand dramatically when the competitive superior species is removed from the area. This is called as:
| 1. | Competitive exclusion | 2. | Competitive release |
| 3. | Interference competition | 4. | Exploitative competition |
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Competitors can coexist indefinitely only by:
| 1. | niche differentiation | 2. | contest competition |
| 3. | interference competition | 4. | scramble competition |
The two species physically interfere with one another by aggressively attempting to exclude one another from particular habitats in:
| 1. | competitive exclusion | 2. | predation |
| 3. | exploitative competition | 4. | interference competition |
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Resource partitioning is:
| 1. | Competitive exclusion results in the success of the superior species. |
| 2. | Slight variations in niches allow similar species to coexist. |
| 3. | Two species can coevolve to share the same niche. |
| 4. | Differential resource utilization results in a decrease in species diversity |
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Consider the following statements:
| I: | When certain exotic species are introduced into a geographical area, they become invasive because the invaded land does not have its natural predators. |
| II: | Competition is best defined as a process in which the fitness of one species is significantly lower in the presence of another species. |
| III: | Biological control methods adopted in agricultural pest control are based on the ability of the predator to regulate the prey population. |
Which of the above statements are true?
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II, and III |
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When the feeding efficiency of one species is reduced due to the inhibitory presence of the other species, even if resources are abundant, it is called:
| 1. | Interference competition | 2. | Exploitative competition |
| 3. | Amensalism | 4. | Predation |
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The competitive exclusion principle can be best expressed as:
| 1. | the more abundant species will exclude the less abundant species through competition |
| 2. | competition for the same resources excludes species having different lifestyles |
| 3. | no two species can occupy the same niche indefinitely when resources are limited |
| 4. | larger organisms exclude smaller ones through competition as in the case of large trees controlling underbrush |
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- 1(current)
Q. No.
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