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Ecosystem Structure and Functions Online Exam Quiz

Important questions about Ecosystem Structure and Functions. Ecosystem Structure and Functions MCQ questions with answers. Ecosystem Structure and Functions exam questions and answers for students and interviews.

Which one of the following is not a gaseous biogeochemical cycle in an ecosystem?


A : a. Carbon cycle

B : b. Phosphorous cycle

C : c. Sulfur cycle

D : d. Nitrogen cycle

Transfer of energy from source of plants through a series of organism is known as ________________


A : a. Food web

B : b. Energy cycle

C : c. Food chain

D : d. Biological system

An ecosystem which can be easily damaged but can recovered after some time if damaging effect stops will be having ____________________


A : a. High stability and high resilience

B : b. High stability and low resilience

C : c. Low stability and low resilience

D : d. Low stability and high resilience

Pyramids of number in grassland ecosystem are inverted.


A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

In ecosystem standing crop refers to________________


A : a. All the green plants

B : b. All the non living materials

C : c. All living and dead animals

D : d. All the living materials both animals and plants

Which ecosystem produce the highest annual net primary productivity?


A : a. Tropical evergreen forest

B : b. Tropical rain forest

C : c. Tropical deciduous forest

D : d. Temperate evergreen forest

What flows through the ecosystem while matter cycles within them?


A : a. Energy

B : b. Force

C : c. Pressure

D : d. Wind

Total primary production in an ecosystem is known as____________________


A : a. Gross final production

B : b. Gross primary production

C : c. Gross middle production

D : d. Net primary production

Which type of ecosystem accounts for most of the net primary productivity on earth even though it has a low average net primary productivity?


A : a. Tropical rain forest

B : b. Desert

C : c. Tropical evergreen forest

D : d. Oceans

Generally ecosystem consists of how many basic components?


A : a. One

B : b. Two

C : c. Three

D : d. Four

The three functional components interact with each other to form__________________


A : a. Environmental succession

B : b. Environmental depression

C : c. Environmental system

D : d. Ecology

The dominant second tropic level in a lake ecosystem is_____________________


A : a. Phytoplankton

B : b. Zooplankton

C : c. Plankton

D : d. Benthos

Green plants are the most important organisms for an ecosystem.


A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

Consumer for food that feeds on producers are known as_____________________


A : a. Carnivores

B : b. Consumers

C : c. Herbivores

D : d. Producers

The food chain from grass to hawk and again it comes back to grass with the help of fungi. In the above explain food chain, what is grass?


A : a. Producers

B : b. Consumers

C : c. Decomposers

D : d. Energy source

The process in which green plants and few organisms use sunlight to synthesize nutrients is known_________________


A : a. Chemosynthesis

B : b. Photosynthesis

C : c. Food chain

D : d. Food web

The process of making food by certain microbes create energy by some chemical reactions is known as_______________________


A : a. Photosynthesis

B : b. Food chain

C : c. Chemosynthesis

D : d. Hetrosynthesis

The grass is a producer.


A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

The food chain level in autotrophy is_____________


A : a. Primary

B : b. Secondary

C : c. Tertiary

D : d. Quaternary

Autotrophic bacteria that produce food through chemosynthesis have also been found at places on the seafloor called_____________________


A : a. Cold seeps

B : b. Hot seeps

C : c. Coral seeps

D : d. Warm seeps

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