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प्रश्न
Give one example of a simple food chain.
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उत्तर
Grass → Deer → Lio
(Producer) (Herbivore) (Carnivore)
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संबंधित प्रश्न
State with reason any two possible consequences of elimination of decomposers from the Earth.
List two biotic components of a biosphere.
List two important roles play in the environment by decomposers.
The following statement is true or false :
In biology, human beings are called producers.
Which category of organisms forms the starting point of a food chain?
At which trophic level a person is feeding when he is eating roasted chicken.
Which of the following represents a possible food chain found in a pond :
| Primary producers |
Primary consumers | Secondary consumers |
| (a) green algae | fish | mosquito larvae |
| (b) fish | green algae | mosquito larvae |
| (c) mosquito larvae | fish | green algae |
| (d) green algae | mosquito larvae | fish |
The following is a food chain that ends with human :
plants → bee → human
Explain how plants provide food for bees.
The following is a food chain that ends with human :
How does this food chain differ form a usual food chain involving human such as : plants → goat → human?
If 5 joules of energy is available at producer level (plants), then how much energy will be transferred to the lion in the following food chain?
Plants → Goat → Lion
Explain why, the flow of energy in the ecosystem is said to be unidirectional.
The harmful chemical which is accumulating in human beings through food chain is :
(a) benzenehexachloride
(b) dichlorodiphenyltrichloroethane
(c) chlorofluorocarbon
(d) abscisic acid
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In an ecosystem, herbivores represent ______.
The food chain begins with the energy given by the ______.
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In the given food chain, suppose the amount of energy at the fourth trophic level is 5 kJ, what will be the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk
Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as
DDT was sprayed in a lake to regulate breeding of mosquitoes. How would it affect the trophic levels in the following food chain associated with a lake? Justify your answer.
