Advertisements
Advertisements
प्रश्न
The sea water contains water beetles, tadpole, fish and weeds.
Which organisms can trap solar energy to make food?
Advertisements
उत्तर
Weeds can trap solar energy to make food.
APPEARS IN
संबंधित प्रश्न
State with reason any two possible consequences of elimination of decomposers from the Earth.
List two main components of ecosystem?
In the following food chain, 20,000 J of energy was available to the plants. How much energy would be available to man in this chain?
Plants → Sheep → Man
Fill in the following blank with suitable word :
A series of organisms, each of which feeds on the next organism, the beginning of which is a green plant, is called a .............
Draw the food chain with four trophic levels.
What will happen if we kill all the organisms in one trophic level?
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 one or two word for the following statement/definition :
Each level of food chain where transfer of energy takes place
Which of the following is not a producer?
(a) grass
(b) zooplankton
(c) phytoplankton
(d) paddy
The sea water contains water beetles, tadpole, fish and weeds.
Which organism is a secondary consumer?
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?
What would happen to the number of grass plants and foxes if the number of rabbits increased?
Will the levels of biological magnification be different at different levels of the ecosystem?
Explain why, the flow of energy in the ecosystem is said to be unidirectional.
In the food chain given below, if the amount of energy available at fourth trophic level is 5 kJ, what was the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk
(a) 500 kJ
(b) 50 kJ
(c) 5000 kJ
(d) 5 kJ
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?
______ obtained energy from the chemical breakdown of dead organisms.
Animals that eat both plants and animals are called as Carnivores.
DDT was sprayed in a lake to regulate breeding of mosquitoes. How would it affect the trophic levels in the following food chain associated with a lake? Justify your answer.
