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प्रश्न
Name one decomposer.
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उत्तर
Bacteria are decomposers.
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संबंधित 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
Explain the terms 'producer' and 'consumer'. Give two examples of producers and two of consumers.
Define decomposers.
What is a trophic level?
At which trophic level a person is feeding when he is eating fish.
Write one or two word for the following statement/definition :
Each level of food chain where transfer of energy takes place
In a food chain, the third trophic level is always occupied by :
(a) carnivores
(b) herbivores
(c) decomposers
(d) producers
Organisms which synthesise carbohydrates from inorganic compounds by using radiant energy are called ______.
Which of the following is not a producer?
(a) grass
(b) zooplankton
(c) phytoplankton
(d) paddy
The following is a food chain that ends with human :
plants → bee → human
How do bees provide food for humans?
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?
The following statement is true or false :
Only 10 per cent of the light energy given by the sun is available for transfer at each higher trophic level in a food chain.
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.
What are decomposers? What will be the consequence if the decomposers are completely eradicated from an ecosystem? Give justification in support of your answer.
Primary consumers that eat plants are called _______.
A food chain comprising birds, green plants, fish and man. The concentration of harmful chemical entering the food chain will be maximum in ______.
Natural agents like ______ are the decomposition factors breaking complex forms into simpler units.
The food chain begins with the energy given by the ______.
If a harmful chemical enters a food chain comprising peacocks, plants, rats and snakes, which of these organisms is likely to have the highest concentration of the chemical in its body? Justify your answer. Name the process involved and define it.
Study the picture given below showing three food chains (a), (b) and (c) and answer the following questions:
- Name the type of ecosystems that exist in food chains (b) and (c).
- The first trophic level in all food chains is producers. Why? What percentage of solar energy do these producers capture for their use?
- Why are the arrows shown in the diagram in one direction only and not vice versa? Justify.
