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Ecossystem_Quiz_3

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

the number of organisms at each trophic level forms the pyramid of______________

a)

biomass

b)

number

c)

trees

2.

pyramid of number may be ___________

a)

inverted

b)

upright

c)

straight

3.

the total standing crop biomass at each trophic level is pyramid of ___________

a)

number

b)

biomass

c)

population

4.

______________crop biomass is the amount of the living matter at any given time

a)

Standing

b)

SItting

c)

Gross

5.

in case of aquatic ecosystems the pyramid of biomass may be_________________

a)

inverted

b)

straight

c)

constant

6.

the total amount of energy at each trophic level is called Pyramid of___________

a)

number

b)

biomass

c)

energy

7.

the amount of energy transferred from higher trophic level is called _____________ efficiency

a)

biological

b)

ecological

c)

physical

8.

Ecological efficiency also called _____________efficiency

a)

Lindman’s

b)

Louis Pasteur

c)

Leewenhoek

9.

The source of all carbon is _______________ present in the atmosphere.

a)

coal

b)

carbon dioxide

c)

oxygen

10.

Green plants in the presence of ______________utilize CO2 in the process of photosynthesis

a)

sunlight

b)

clouds

c)

sky

11.

______________is a metabolic process where food is oxidized to liberate energy, CO2 and water

a)

transition

b)

respiration

c)

digestion

12.

The dead organic matter is decomposed by microorganisms and CO2 is released into the atmosphere by ___________________

a)

plants

b)

consumers

c)

decomposers

13.

Burning of biomass releases carbon dioxide into the atmosphere is ______________.

a)

consumption

b)

combustion

c)

respiration

14.

increase concentration of CO2 in the atmosphere, which is a major cause of _________________.

a)

precipitation

b)

global warming

c)

combustion