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प्रश्न
Write down a food chain which ends with humans.
उत्तर
Grass → Goat → Man
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संबंधित प्रश्न
The first trophic level in a food chain is always a green plant. Why ?
Write the percentage of energy transferred from autotrophs to the next level in a food chain.
Explain why, a food chain usually cannot have more than three or four steps.
Name and state the law given by Lindeman which tells us how much energy entering a particular trophic level of organisms is available for trasnsfer to the next higher trophic level.
Your mother always thought that fruit juices are very healthy for everyone. One day she read in the newspaper that some brands of fruit juices in the market have been found to contain certain level of pesticides in them. She got worried as pesticides are injurious to our health.
(a) How would you explain to your mother about fruit juices getting contaminated with pesticides?
(b) It is said that when these harmful pesticides enter our body as well as in the bodies of other organisms they get accumulated and beyond a limit cause harm and damage to our organs. Name the phenomenon and write about it.
Arrange the following in a correct sequence and form a food chain
Human → Insect → Algae → Fish
The food chain begins with the energy given by the ______.
Animals that eat both plants and animals are called as Carnivores.
In a food chain grasshopper gets energy by eating frog.
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.
