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In the Food Chain Comprising of a Snake, Grass, Insect, and Frog, the Secondary Consumer is : (A) Insect (B) Snake (C) Frog (D) Grass - Science

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प्रश्न

In the food chain comprising of a snake, grass, insect, and frog, the secondary consumer is :
(a) insect
(b) snake
(c) frog
(d) grass

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उत्तर

frog
The grass is eaten by the insect, which is eaten by the frog, which is eaten by the snake. Hence, the grass is the producer, the insect is the primary consumer, the frog is the secondary consumer and the snake is the tertiary consumer.

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अध्याय 5: Our Environment - Exercise 1 [पृष्ठ २२९]

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लखमीर सिंग Biology (Science) [English] Class 10
अध्याय 5 Our Environment
Exercise 1 | Q 72 | पृष्ठ २२९

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संबंधित प्रश्न

The first trophic level in a food chain is always a green plant. Why ?


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?


In the following food chain, plants provide 500 J of energy to rats. How much energy will be available to hawks from snakes?

Plants → Rats → Snakes → Hawks
 


The following statement is true or false :

Secondary consumers and tertiary consumers, both are carnivores.


What are the various steps of food chain called?


A food chain represents a unidirectional flow of X. What is X?


Consider the food chain :
Grass → Deer → Lion
What will happen if all the lions are removed from the above food chain?


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


The following is a food chain that ends with human :

Do you think that the food chain given in this question can really be regarded as a food chain? Explain your answer.


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?


Fill in the following blank with suitable word :

Plants → Antelope → ............


Will the levels of biological magnification be different at different levels of the ecosystem?


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(a) 99 per cent
(b) 10 per cent
(c) 1 per cent
(d) 20 per cent


If the energy available at the producer level in a food chain is 150 J, how much energy will be transferred to : tertiary consumer?
(a) 15 J
(b) 10 J
(c) 1.50 J
(d) 0.15 J


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


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


Natural agents like ______ are the decomposition factors breaking complex forms into simpler units.


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


Which statement is correct with respect to the food chain?


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