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प्रश्न
Fill in the following blank with suitable word :
Decomposer organisms are..........in their action.
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उत्तर
Decomposer organisms are specific in their action.
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संबंधित प्रश्न
State with reason any two possible consequences of elimination of decomposers from the Earth.
Give reason to justify the following: Flow of energy in a food chain is unidirectional.
Will the impact of removing all the organisms in a trophic level be different for different trophic levels? Can the organisms of any trophic level be removed without causing any damage to the ecosystem?
What name has been given to those organisms which break down the complex organic compounds present in dead animals and plants?
The following statement is true or false :
In biology, human beings are called producers.
Can the organisms of any trophic level be removed without causing any damage to the ecosystem? Will the impact of removing all the organisms in a trophic level be different for different trophic levels?
Write down a food chain with five links in it.
At which trophic level a person is feeding when he is eating fish.
Construct a long food chain.
Write one or two word for the following statement/definition :
Each level of food chain where transfer of energy takes place
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms can trap solar energy to make food?
The following is a food chain that ends with human :
plants → bee → human
How do bees provide food for humans?
Write the percentage of energy transferred from autotrophs to the next level in a food chain.
Name the process in which a harmful chemical enters the food chain and gets concentrated at each trophic level.
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
Fill in the following blank with suitable word :
Lettuce → ............. → Fox
What does garbage consist of?
The ten per cent law is associated with
(a) transfer of energy from various trophic levels to decomposers in a food chain
(b) transfer of ATP energy into muscular energy
(c) transfer of chemical energy from one organism to another
(d) transfer of sun's energy to the organisms called producers.
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.
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
