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प्रश्न
The decomposers in an ecosystem ______.
विकल्प
convert inorganic material, to simpler forms
convert organic material to inorganic forms
convert inorganic materials into organic compounds
do not breakdown organic compounds
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उत्तर
The decomposers in an ecosystem convert organic material to inorganic forms.
APPEARS IN
संबंधित प्रश्न
List two important roles play in the environment by decomposers.
The following statement is true or false :
Secondary consumers and tertiary consumers, both are carnivores.
Name the organisms belonging to the second and the fourth trophic levels in the food chain comprising the following :
Frogs, Plants, Snakes, Hawk, Insects
Construct a food chain comprising the following :
Snakes, Hawk, Rats, Plants
What is a trophic level?
Draw the food chain with four trophic levels.
Write down a food chain which ends with humans.
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 can trap solar energy to make food?
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?
Fill in the following blank with suitable word :
Lettuce → ............. → Fox
Explain how harmful chemicals enter our bodies.
A food chain comprises of cat, seed-eating bird, plants, and dog. The organism which will have the maximum concentration of harmful pesticides coming through the food chain is most likely to be :
(a) cat
(b) plants
(c) dog
(d) seed-eating bird
"Energy flow in food chains is always unidirectional". Justify this statement. Explain how the pesticides enter a food chain and subsequently get into our body.
What would happen if an organism is removed from the food chain?
In a given food chain if the amount of energy at the fourth trophic level is 6 kJ, what will be the energy available at the producer level?
______ are organisms that are able to produce their own organic food.
The food chain begins with the energy given by the ______.
In the given food chain, suppose the amount of energy at the fourth trophic level is 5 kJ, what will be the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk
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.
