Q. No.Camouflage is:
1. Cryptic coloration 2. Aposematic coloration 3. Incidental coloration 4. Dispersive coloration
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The monarch butterfly acquires distasteful toxin during:
| 1. | Caterpillar stage by feeding on a poisonous weed |
| 2. | Caterpillar stage by feeding on sap of a grass |
| 3. | Adult stage by feeding on nectar of a flowering plant |
| 4. | Adult stage by feeding on latex of deadly night shade plant |
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The most common means of morphological defense in plants against herbivory are:
| 1. | Spines | 2. | Thick cuticle |
| 3. | Thorns | 4. | Slime |
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Nicotine, caffeine, quinine and opium produced by plants are actually:
1. Primary metabolites needed in reproduction
2. Secondary metabolites needed for growth
3. Alkaloids that are present in seeds
4. Defenses against grazers and browsers
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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 |
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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 |
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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 |
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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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