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प्रश्न
Fill in the following blank with suitable word :
Pesticides enter the food chain at the ...........level
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उत्तर
Pesticides enter the food chain at the producer level.
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संबंधित प्रश्न
Why are green plants called producers?
In the following food chain, plants provide 500 J of energy to rats. How much energy will be available to hawks from snakes?
Plants → Rats → Snakes → Hawks
Define decomposers.
Give an example of a four step food chain operating in grassland. Name the secondary consumer in this food chain
What is a trophic level?
Write down a food chain with five links in it.
Construct a long food chain.
Which of the following group of organisms are not constituents of a food chain?
- grass, lion, rabbit, wolf
- plankton, man, fish, grasshopper
- wolf, grass, snake, tiger
- frog, snake, eagle, grass, grasshopper
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms are (i) predators, and (ii) prey?
The following is a food chain that ends with human :
Do you think that the food chain given in this question can really be regarded as a food chain? Explain your answer.
What would happen to the number of rabbits and grass plants if the number of foxes increased?
Why are there rarely more than five links (or five organisms) in a food chain?
What is ten per cent law? Explain with an example.
What does garbage consist of?
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.
Arrange the following in a correct sequence and form a food chain
Rabbit → Carrot → Eagle → Snake
______ obtained energy from the chemical breakdown of dead organisms.
Analogy:
Primary Consumer: Goat, Cow:: Secondary Consumer: ______.
In the following food chain, vertical arrows indicate the energy lost to the environment and horizontal arrows indicate energy transferred to the next trophic level. Which one of the three vertical arrows (A, C and E) and which one of the two horizontal arrows (B and D) will represent more energy transfer? Give reason for your answer.
A food chain in a forest ecosystem
