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Quiz 2
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The transfer of energy in a food chain is always:
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Unidirectional
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Methane
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Bi-directional
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Random
Explanation
Unidirectional
Which of these organisms are the most important decomposers in an ecosystem?
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Algae and fungi
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Fungi and bacteria
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Algae and bacteria
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Bacteria and virus
Explanation
Fungi and bacteria
Which of these does not belong to biotic component?
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Parasites
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Fungi
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Bacteria
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Soil
Explanation
Soil
Which of the following is always at the second trophic level of the food chains
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Autotrophs
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Herbivores
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Carnivores
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Decomposers
Which of the following is not a terrestrial ecosystem?
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Forest
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Grassland
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Desert
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Aquarium
Excessive exposure of humans to U V-rays results in (i) damage to immune system (ii) skin cancer (iii) damage to lungs (iv) peptic ulcers
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(ii) and (iv)
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(i) and (iii)
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(iii) and (iv)
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(i) and (ii)
If a rats is eaten by a snakes, then the energy transfer will be from
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producer to decomposer
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producer to primary consumer
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secondary consumer to primary consumer
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primary consumer to secondary consumer
The first conference on Ozone layer was held in
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1987
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1990
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1986
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2000
Arrange the below according to the trophic level Fish, Zooplankton, Seal, Phytoplankton
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Zooplankton -> fish -> Phytoplankton -> seal
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Phytoplankton -> fish -> Zooplankton -> seal
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Zooplankton -> Phytoplankton -> fish -> seal
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Phytoplankton -> Zooplankton -> fish -> seal
What are the various steps of food chain called
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Food chain levels
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Tropic levels
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Trophic levels
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None of these
Which of the statement is incorrect?
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Green plants get their food from organic compounds
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All green plants and blue green algae are producers
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Plants convert solar energy into chemical energy
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Producers prepare their own food from inorganic compounds
Which of the following belongs to same trophic levels= (i) Insects (ii) Algae (iii) Spider (iv) Snakes (v) Frog
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(i) and (ii)
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(i) and (iii)
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(iii) and (iv)
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(iii) and (v)
which of these is not ODS?
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CFCs
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Halons
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Nitrous Oxide
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HFC
What will happen if deer is missing in the food chain given below? Grass → Deer → Tiger
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The population of tiger decreases and the population of grass increases
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Tiger will start eating grass
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The population of tiger increases
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The population of grass decreases
Which of the following limits the number of trophic levels in a food chain?
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insufficient food supply
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Polluted air
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water
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Decrease in energy at higher trophic levels
Ten percent law was given by
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Lindeman
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Darwin
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Mendel
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Morgan
Match the column
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p -> iv, q -> i, r ->ii, s -> iii
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P -> i, q -> i, r ->iv, s -> iii
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P -> iv, q -> ii, r ->i, s -> iii
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P -> ii, q ->iv, r ->i, s -> iii
In the below food chain,5 J of energy was available to Hawks. How much would have been present in plants Plants -> Rats -> Snakes -> Hawks
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50 J
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5 J
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500 J
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5000 J
Amount of energy transferred from one trophic level to the next is
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1%
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10%
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20%
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2%
Match the column
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p ->(i) , q ->(ii), r -> (i) , s- > (ii)
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p ->(i) , q ->(i), r -> (ii) , s- > (ii)
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p ->(ii) , q ->(ii), r -> (ii) , s- > (i)
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p ->(ii) , q ->(ii), r -> (i) , s- > (i)
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