मराठी

A Food Chain Occurring in the Sea Which Provides Food for Many People Can Be Written as : Phytoplankton → Zooplankton → X → Y Name the Organism Which Y Could Be.

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प्रश्न

A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y

Name the organism which Y could be.

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उत्तर

Y could be a big fish.

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पाठ 5: Our Environment - Exercise 1 [पृष्ठ २३०]

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लखमीर सिंह Biology Part 3 [English] Class 10
पाठ 5 Our Environment
Exercise 1 | Q 76.4 | पृष्ठ २३०

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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


At which trophic level a person is feeding when he is eating bread.


At which trophic level a person is feeding when he is eating apple.


If a grasshopper is eaten by a frog, then the energy transfer will be from ______.


Organisms of a higher trophic level which feed on several types of organisms belonging to a number of lower trophic levels constitute the ______.


The sea water contains water beetles, tadpole, fish and weeds.

Which organisms in the food chain are herbivore, and carnivores?


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?


A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y

What could be X?


What is meant by bioconcentration of pesticides


Explain why, the flow of energy in the ecosystem is said to be unidirectional.


Explain why, a food chain usually cannot have more than three or four steps.


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 addition to wheat plants, a crop field ecosystem has organisms such as snake, peacock, eagle and mice. If the wheat plants are sprayed with pesticides periodically, which of the following will have the minimum concentration of pesticides in the body?
(a) snake
(b) eagle
(c) mice
(d) peacock


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.


A forest ecosystem having a lot of green plants has some foxes, lions and rabbits in it.
(a) Write a food chain comprising all the four organisms mentioned above.
(b) Name (i) one herbivore, and (ii) two carnivores, in this food chain.
(c) Name the link which is a predator as well as a prey.
(d) Name (i) second trophic level, and (ii) third trophic level.
(e) Which link of this food chain can feed on second trophic level as well as third trophic level, independently?
(f) If the sun provides 1000 J of energy to the plants, then how much energy will be transferred to fox through the food chain.


A food chain consists of fish, larvae, phytoplanktons and birds. The level of pesticides in water in which the fish, larvae and phytoplanktons live is quite high.                                             

Which organism will have the maximum amount of pesticides accumulated through the food chain? What is this process known as?


Give one example of a food chain in an aquatic ecosystem?


We should reduce the use of the plastic bags, bottles etc. because ______.


If 100 J energy is available at the producer level in a food chain then the energy available to the secondary consumer will be ______.


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