Ecosystem NEET Questions | Online MCQs Test 03

Ecosystem Questions: Quiz - 3

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Question 1

The food chain, in which the microorganisms breakdown the energy-rich organic compounds prepared by the producers, is known as

A	Detritus food chain
B	Predator food chain
C	Parasitic food chain
D	Ecosystem

Question 2

Microbes that break down the complex organic matter into simple substances like carbon, nitrogen, water etc. are

A	Producers
B	Decomposers
C	Consumers
D	Symbionts

Question 3

The ecological pyramid which can be inverted in a tree eco-system is

A	Pyramid of Number
B	Pyramid of Energy
C	Pyramid of Biomass
D	both (b) and (c)

Question 4

Biotic factors refer to

A	Gases produced by industries
B	Nutrient-deficient soils
C	Living organisms
D	Fossil fuel

Question 5

In an ecosystem, the main source of energy is

A	heat released during transpiration
B	solar energy
C	sugar stored in plants
D	heat released during fermentation

Question 6

The 10% law for energy transfer in food chains was given by

A	Stanley
B	Tranley
C	Lindemann
D	Weismann

Question 7

Of the total incident solar radiation the proportion of PAR is

A	More than 80%
B	About 70%
C	About 60%
D	Less than 50%

Question 8

Succulent plants grow in

A	Tundra
B	Deserts
C	Tropical rain forests
D	Temperate deciduous forests

Question 9

Organisms which break down detritus into matter particles

A	Herbivores
B	Carnivores
C	Detritivores
D	None of these

Question 10

Stratification is more common in

A	Deciduous forest
B	Tropical rain forest
C	Temperate forest
D	Tropical savannah

Question 11

Pyramid of energy in ecosystems is

A	Always upright
B	Always inverted
C	Mostly upright
D	Mostly inverted

Question 12

Savannahs are

A	Tropical rain forests
B	Dense forest with closed canopy
C	Grasslands with scattered trees
D	Desert scrub

Question 13

Quercus species are the dominant component in

A	Tropical rain forests
B	Temperate deciduous forests
C	Alpine forests
D	Scrub forests

Question 14

Sal (Shorea robusta) forest is a

A	Deciduous forest
B	Evergreen forest
C	Rain forest
D	None of these

Question 15

Mass of living matter at a trophic level in an area at any time is called

A	Standing state
B	Standing crop
C	Detritus
D	Humus

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Ecosystem NEET Questions | Online MCQs Test 03 3

Ecosystem Questions: Quiz - 3

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