मराठी

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)

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प्रश्न

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

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उत्तर

 dog
The concentration of harmful pesticides in the bodies of birds and animals increases at each trophic level, and hence the dog in the given food chain will have the maximum concentration of harmful pesticides. 

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Our Environment - Exercise 2 [पृष्ठ २४२]

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लखमीर सिंह Biology Part 3 [English] Class 10
पाठ 5 Our Environment
Exercise 2 | Q 49 | पृष्ठ २४२

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संबंधित प्रश्‍न

Give reason to justify the following: Flow of energy in a food chain is unidirectional.


We do not clean natural ponds or lakes but an aquarium needs to be cleaned regularly. Why is it so ? Explain.


What will happen if we kill all the organisms in one trophic level?


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


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

Name the organism which Y could be.


Some hunters are roaming in the plush green forest of Africa. They spot a deer and kill it. They decide to roast the deer there and then and eat it. When the hunters had just finished enjoying the feast of roasted deer, a lion attacks them. The lion kills one of the hunters and eats his flesh.
(a) write a food chain which provides food to lion in this case.
(b) Which animal (other than deer) the lion could look for food if he did not get the hunter as prey?
(c) Which other animal in the forest could have been in place of lion?
(d) How does the above food chain differ form the food chain such as : plants → goat → man?


Fill in the following blank with suitable word :

 Grass → ........... → Human


What is ten per cent law? Explain with an example.


What does garbage consist of?


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


Most of the water surface of a lake is covered with algae. This algae is part of the food chain which also includes small fish, bird, larvae and big fish. Which of the following will obtain the maximum energy?
(a) big fish
(b) bird
(c) larvae
(d) small fish


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


The harmful chemical which is accumulating in human beings through food chain is :
(a) benzenehexachloride
(b) dichlorodiphenyltrichloroethane
(c) chlorofluorocarbon
(d) abscisic acid


Arrange the following in a correct sequence and form a food chain

Rabbit Carrot Eagle Snake


Give some examples for Biodegradable and Non-biodegradable waste.

S. No. Biodegradable waste Non-biodegradable waste
1. Food Waste Plastic Bottles
2.    
3.    
4.    
5.    

Which of the following is a logical sequence of food chain?


What are autotrophs? 


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


In the following food chain, vertical arrows indicate the energy lost to the environment and horizontal arrows indicate energy transferred to the next trophic level. Which one of the three vertical arrows (A, C and E) and which one of the two horizontal arrows (B and D) will represent more energy transfer? Give reason for your answer.

A food chain in a forest ecosystem


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