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WorksheetsEcology Review 2
Total questions: 15
Worksheet time: 8mins
Ecosystem may be defined as
A species along with environment
Plants found in water
Plants found on land
plants and animals species along with environment
A pond / lake is
A biome
Natural ecosystem
An artificial ecosystem
Community of plants and animals only
Biome is
The fauna of an ocean
The Flora of land
Communities of organisms interacting with one another
The part of the earth and its atmosphere which is inhabited by living organisms
Primary consumers in the detritus food chain are
Herbivorous
Bacteria and fungi
Insect Larva
All the above
Total organic matter present in an ecosystem is called
Biomass
Biome
Litter
Food
The most important organisms for an ecosystem are
consumers
carnivorous
producers
protozoas
A peacock eats snakes which eat frog these eat hoppers which in turn thrive on leaves of the plants, the peacock is
Primary consumer
Secondary consumer
Decomposer
Last consumer
A food chain is
Group of organisms which eat the same type of food.
animals eating animals
series of plants/ animals which are interrelated in the form of an organism being eaten as food by the others
None of the above
A food chain consist of
Only producers
Only animals
Only decomposers
Producers, consumers and decomposers
Food chain always starts with
Respiration
Photosynthesis
Nitrogen fixation
Decomposition
Producers in a grazing food chain
feed the herbivorous
feed the carnivorous
clean the waste
capture chemical energy
In biomass pyramid, the largest group with biomass occupies
Bottom of the pyramid
middle of the pyramid
Top of the pyramid
When a big fish eats a small fish which eats water fleas supported by phytoplankton water fleas are
Producers
Primary consumers
Secondary consumers
Top consumers
Which is true of a food chain?
Passage of carbon from one trophic Level to the next higher one
Passage of energy from one trophic Level to next higher one
Passage of biomass from one trophic Level to next higher one
All of the above
Which one is not a factor of the abiotic environment?
Water
Temperature
Decomposers
Sunlight
