हिंदी

In a Food Chain, the Initial Organism is Usually : (A) Photosynthetic (B) Herbivore (C) Saprophytic (D) Parasitic - Science

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प्रश्न

In a food chain, the initial organism is usually :
(a) photosynthetic
(b) herbivore
(c) saprophytic
(d) parasitic

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उत्तर

photosynthetic
The initial organism of a food chain is the producer, which produces food through photosynthesis.

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Our Environment - Exercise 1 [पृष्ठ २२८]

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लखमीर सिंग Biology (Science) [English] Class 10
अध्याय 5 Our Environment
Exercise 1 | Q 47 | पृष्ठ २२८

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संबंधित प्रश्न

"Energy flow in a food chain is unidirectional" Justify this statement.


Give reason to justify the following: The existence of decomposers is essential in a biosphere.


List two biotic components of a biosphere.


List two main components of ecosystem?


List two important roles play in the environment by decomposers.


Which category of organisms forms the starting point of a food chain?


Name the organisms belonging to the second and the fourth trophic levels in the food chain comprising the following :
Frogs, Plants, Snakes, Hawk, Insects


Fill in the following blank with suitable word :

In nature, all green plants are............ whereas animals are consumers.


Define decomposers. 


What is the role of decomposers in the ecosystem?


Give an example of a four step food chain operating in grassland. Name the secondary consumer in this food chain


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


Construct a short foodchain, ending with man.


What is a 'food web'? Show its formation.


Why are there rarely more than five links (or five organisms) in a 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.

Write the food chain comprising all the organisms mentioned above.


Green plants utilize ______ percent of sun’s energy to prepare their food by the process of photosynthesis.


A food chain comprising birds, green plants, fish and man. The concentration of harmful chemical entering the food chain will be maximum in ______.


In a food chain, the third trophic level is always occupied by


Study the picture given below showing three food chains (a), (b) and (c) and answer the following questions:

  1. Name the type of ecosystems that exist in food chains (b) and (c).
  2. The first trophic level in all food chains is producers. Why? What percentage of solar energy do these producers capture for their use?
  3. Why are the arrows shown in the diagram in one direction only and not vice versa? Justify.

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