Environmental Science and Ecology - Mock Test 65

Question 641

The gross primary production is maximum in the following ecosystem?

A) Open sea B) Grasslands and pastures C) Coniferous forests D) Tropical and sub-tropical forest

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Question 642

Mark the correct statement?

A) Phagotrophs are transducers B) Some herbivores are converters C) Microconsumers are saprotrophs D) All are correct

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Question 643

The following belong to the same trophic level?

A) Tiger and wild beer B) Snake and earthworm C) Deer and honey bee D) Crow and cow

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Question 644

The importance of ecosystem lies in?

A) Cycling of materials B) Flow of energy C) Both a & b D) None of the above

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Question 645

Which of the following world is related to Homo sapiens?

A) Herbivore B) Carnivore C) Autotroph D) Omnivore

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Question 646

A food chain starts with?

A) Nitrogen fixing organisms B) Photosynthesizing organisms C) Respiration D) Decomposers

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Question 647

Which of the following characterizes the biomass in an ecosystem?

A) The biomass of producers is less than the combined biomass of consumers and decomposers B) No general statement can be made about relative biomass of different ecological groups C) The biomass of secondary consumers is usually greater than the biomass of primary consumers D) The biomass of producers is generally greater than the biomass of primary consumers

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Question 648

Green plants constitute?

A) The first trophic level B) The second trophic level C) The third trophic level D) The fourth trophic level

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Question 649

The number of primary producers within a specified area world be maximum in?

A) Pond ecosystem B) Grassland ecosystem C) Desert ecosystem D) Forest ecosystem

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Question 650

Biophere refers to?

A) Plants of a particular area B) Area occupied by living beings C) Plants of world D) Spherical plants

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