10th Class Biology Solved MCQS
Conversion of Nitrates into nitrogen gas is called.
Nitrogen fixtation
Assimilation
Ammonification
Denitrification
Which form of nitrogen is taken by the producer of the Ecosystem?
Ammonia
Nitrates
Nitrage
Nitrogen Gas
R-3 means.
Less use
Refuse
Reuse
Recycle
In the food chaingrass……rabbit……. fox…………..bear………..mushroom, how many types of decomposers are present?
2
3
1
4
conversion of the nitrogen gas into nitrates is called.
Ammonification
Denitrification
Nitrogen fixation
Assimilation
Identify the correctly matched pair:
Global warming formation of fossil fuels
Renewable natural resources air
Rainfall biotic factors in ecosystem
Corn secondary consumer
At the end of a long food chian the energy will be.
Will less
As same as at start
Will more
Zero
When we eat the onion, our trophic level is
Decomposer
Primary consumer
Secondary consumer
Producers
All ecosystems of the world combine to form:
Population
Competition
Biosphere
Community
It is an example of primary consumers:
Snake
Frog
Lion
Cattles
Livingof Nitrogen bacteria in the roots nodules of Leguminous plant is an example of :
Commensalism
Predation
Parasitism
Mutualism
Abiotic component of the ecosystem is:
Producers
Decomposers
Light
Consumers
The consumers that eat animal flesh as well as plants and plant products are called.
Carnivores
Insectivores
Omnivores
Herbivores
The producers of ecosystem are:
green plants
man
bacteria
fungi
It is an example of primary consumers.
Tiger
Cattles
Snake
Lion
Which one of the following is not a temporary parasite?
Mosquito
Leech
Bed bug
Virus
Abiotic component of ecosystem is.
Producers
Oxygen
carnivore
Herbivores
In the food chain tree…. caterpillar.. robin..hawk….coyote, which is secondary consumer?
Hawk
Coyote
Caterpillar
Robin
The materials flow forms one trophic level to the next by means of:
food webs
energy pyramids
both A and B
food chains
One organism kills and feed on other organism is called.
Predation
Mutuatism
Parasitism
Commensalism
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