Environmental Science and Ecology - Comprehensive Mock Test 13

Question 121 Medium

The biomass available for consumption by the herbivores and the decomposers is called ?

A) Gross primary productivity B) Net primary productivity C) Secondary productivity D) Standing crop

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Question 122 Medium

The tiny free-swimming animals on the surface of water constitute ?

A) Phytoplankton B) Symbionts C) Benthos D) Zooplankton

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Question 123 Medium

When the two ecosystems overlap each other, the area is called ?

A) Habitat B) Niche C) Ecotone D) Ecotype

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Question 124 Medium

Which of the following ecosystems has highest rate of gross primary production?

A) Grasslands B) Mangroves C) Coral reefs D) Equatorial rain forests

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Question 125 Medium

Which of the following groups is absolutely essential functional component of the ecosystem?

A) Producers B) Producers and herbivores C) Producers and detritivores D) Detritivores

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Question 126 Easy

Which of the following is correctly matched?

A) Butterfly -------- camouflage B) Garden lizard -------- mimicry C) House lizard -------- autotomy D) None of these

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Question 127 Easy

About 70% of total global carbon is found in ?

A) Forests B) Grasslands C) Agroecosystems D) Oceans

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Question 128 Easy

Which of the following statements is correct?

A) Least productive ecosystem is desert and deep lake B) Sugarcane is the most productive agroecosystem C) Most productive ecosystem is coral reef D) All the above

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Question 129 Medium

Average total rainfall is 100 - 150 cm in ______, located in Australia, South America and Africa?

A) Tropical Savannas B) Chaparrals C) Deciduous forest D) Temperate forest

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Question 130 Medium

Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time?

A) Goat B) Frog C) Sparrow D) Lion

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