Q. No.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
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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
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The ‘Competitive Exclusion Principle’ was given by:
| 1. | Gause | 2. | Connell |
| 3. | Tillman | 4. | Paul Ehrlich |
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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 Exclusion | 2. | Competitive Release |
| 3. | Competitive Supremacy | 4. | Competitive Inclusion |
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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
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One mechanism that promotes co-existence rather than exclusion amongst competing species is:
| 1. | Periodic migration | 2. | Hibernation and aestivation |
| 3. | Resource partitioning | 4. | Reproductive isolation |
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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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An orchid growing as an epiphyte on a mango branch is an example of:
| 1. | Ectoparasitism | 2. | Endopararsitism |
| 3. | Commensalism | 4. | Mutualism |
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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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Lichens represent an intimate mutualistic relationship between a fungus and:
| 1. | an algae | 2. | a cyanobacterium |
| 3. | a brown alga | 4. | either 1 or 2 |
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