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Study the four statement (i-iv) given be...

Study the four statement (i-iv) given below and select the two correct ones out of them
(i) A lion eating a deer and a sparrow feeding or grains are ecologically similar in being consumers.
(ii) Predator star fish Pisaster helps in maintaining species diversity of some invertebrates
(iii) Predators ultimately lead to the extinction of prey species
(iv) Production of chemicals such as nicotine, strychnine by the plants are metabolic disorders
The two correct statements are

A

(ii) and (iii)

B

(iii) and (iv)

C

(i) and (iv)

D

(i) and (ii)

Text Solution

Verified by Experts

The correct Answer is:
D
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MODERN PUBLICATION-ECOSYSTEM -COMPETITION FILE (OBJECTIVE TYPE QUESTIONS)(A. MULTIPLE CHOICE QUESTIONS)
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  2. In plant succession, when climax community is reached, the net product...

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  3. Study the four statement (i-iv) given below and select the two correct...

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  4. The biomass available for consumption by the herbivores and the decomp...

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  5. One of the free nitrogen - fixed in paddy fields is :

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  6. the common nitrogen - fixer in paddy fields is

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  7. Which one of the following is one of the characteristics of a biologic...

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  8. Which one of the following is most appropriately defined?

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  9. Study the cycle shown in Fig. 12.7 and select the option which gives c...

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  10. Which of the ecological pyramids is always upright ?

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  11. Population are said to be sympatric when

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  12. A large regional unit characterised by vegetation type and associated ...

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  13. In primary succession on rocks, the pioneer species are usually:

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  14. The ''10 per cent law'' is related to:

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  15. A phenomenon when a parasite parasitizes another parasite is known as ...

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  16. The type of ecosystem with the highest mean plant productivity is :

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  17. Bell-shaped polygonal pyramid indicates.

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  18. The transition zone between two communities is known as:

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  19. In India, tropical rain forests occur in

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  20. Which one of the following is a denitrifying bacterium ?

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