In the absence of decomposers, ecosystem functioning is adversely affected due to Blocking of mineral cycling, Maximum number in pond ecosystem is of Producers

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Free Online Mock Biology Multiple Choice Test on Eco Systems

Sub Category : Eco Systems	Test : 2	Time Left :
1. In the absence of decomposers, ecosystem functioning is adversely affected due to
(1) Blocking of energy flow (2) Blocking of mineral cycling (3) Blocking of solar energy to herbivores (4) Increase in rate of decomposition of other components.
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2. Maximum number in pond ecosystem is of
(1) Producers (2) Consumers (3) Top consumers (4) Decomposers.
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3. Keystone species of an ecosystem are the ones which are
(1) Most frequent (2) Attain large biomass (3) Present in maximum number (4) Contribute to ecosystem properties.
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4. During adverse reason, therophytes survive through ?
(1) Seeds (2) Bulbs (3) Rhizomes (4) Corms.
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5. Acacia Arabica is ?
(1) Hydrophyte (2) Mesophyte (3) Xerophyte (4) None.

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Free Online Mock Biology Multiple Choice Test on Eco Systems