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प्रश्न
Name the organisms belonging to the second and the fourth trophic levels in the food chain comprising the following :
Frogs, Plants, Snakes, Hawk, Insects
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उत्तर
The second trophic level consists of insects, and the fourth trophic level consists of snakes.
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संबंधित प्रश्न
Give reason to justify the following: Flow of energy in a food chain is unidirectional.
Which of the following constitute a food-chain?
The following statement is true or false :
Secondary consumers and tertiary consumers, both are carnivores.
Write down a food chain in the sea.
Which of the following statement is incorrect?
The following is a food chain that ends with human :
plants → bee → human
How do bees provide food for humans?
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Which organism in the above food chain is a (1) primary consumer, and (2) tertiary consumer?
Give one example of a food chain having four organisms. Below each organism write the three appropriate terms from the part (a) above which you think it represents.
What is ten per cent law? Explain with an example.
Calculate the amount of energy that will be available to big fish in the following food chain, if 10,000 J of energy is available to small algae from the sun :
Small algae → Zooplankton → Fish → Big fish
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.
What would happen if an organism is removed from the food chain?
Observe the food web and answer the questions given below:
Why do all food chains start with plants?
Natural agents like ______ are the decomposition factors breaking complex forms into simpler units.
What will happen if deer is missing in the food chain given below?
Grass → Deer → Tiger
Which statement is correct with respect to the food chain?
Which of the following statements is correct?
