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Q1 What are producers?
FAQ’s
Ans: A producer is an organism that produces food from carbon
dioxide and water using photosynthesis. It can be plant, algae,
plankton or bacteria.
Q2 What are consumers?
Ans: A consumer is an organism that eats other organisms
Q3 What is a food chain?
Ans: A food chain is a chain of organisms existing in an ecosystem,
through which food energy and matter are transferred.
Q4 What is a tropic level?
Ans: A level of a food chain comprising of organisms having similar
mode of nutrition is called trophic level.
Q5 Define food web?
Ans: A net like interlocking of different food chains by forming
interconnections at various trophic levels is called food web.
Q6 Define ecosystem?
Ans: An ecosystem is defined as a dynamic complex of plant,
animal and micro-organism communities, and the non-living
environment which are interacting as a functional unit.
Q7 What are ecological pyramids?
Ans: Ecological pyramids are graphic representation of the
relationship among successive trophic levels of a food chain in
terms of their number, biomass and energy content.
Q8 What are the two types of abiotic components of an
ecosystem? Give examples of each.
Ans: The two types of abiotic components of an ecosystem
are Climatic and Edaphic factors. Climatic factors include
temperature, water, air etc. Edaphic factors include soil
organic matter, minerals, pH etc.
Q9 Define pyramid of biomass?
Ans: The pyramid of biomass shows the relationship of population
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supported at each successive trophic level in terms of biomass.
Q10 Define first order consumers and give some examples?
Ans: The organisms which directly eat producers or plants in a
food chain are called first order consumers. Examples are cattle
like cow and goat, deer, rabbit etc.
Q11Define pyramid of number
Ans: Pyramid of number is the graphic representation of the
number of individual organism at successive trophic levels of
a food chain.
Q12 What are heliophytes?
Ans: Plants which thrive in bright sunlight are called heliophytes.
Q13 Define pyramid of energy?
Ans: The pyramid of energy depicts the rate of energy flow and/
or productivity at successive trophic levels.
Q14 What are sciophytes?
Ans: Plants which can grow in shady conditions are called
sciophytes.
Q15 what is the difference between grazing and detritus
food chains?
Ans: A grazing food chain starts from green plants while as
detritus food chain starts from detrivores.