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The sea water contains water beetles, ta...

The sea water contains water beetles, tadpole, fish and weeds.
(a) Write a food chain comprising all the given organisms.
(b) Which organisms in the food chain are (i) herbivore, and (ii) carnivores ?
(c) Which organisms are (i) predators, and (ii) prey ?
(d) Which organisms can trap solar energy to make food ?
(e) Which organism is a secondary consumer ?

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The correct Answer is:
(a) Weeds `to` Tadpole `to` Water beetles `to` Fish (b) (i) Tadpole (ii) Water beetles ; Fish (c) (i) Water beetles; Fish (ii) Tadpole; Water beetles (d) Weed (e) Water beetles
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LAKHMIR SINGH & MANJIT KAUR-OUR ENVIRONMENT-Exercise
  1. In the food chain comprising of a snake, grass, insect, and frog, the ...

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  2. Sahara Desert was formed over a period of time due to one of the follo...

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  3. The sea water contains water beetles, tadpole, fish and weeds. (a) W...

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  4. The following is a food chain that ends with human : plants to bee t...

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  5. A food chain occurring in the sea which provides food for many people ...

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  6. What would happen to the number of rabbits and grass plants if the num...

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  7. What would happen to the number of grass plants and foxes if the numbe...

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  8. (a) Match the terms given in column I with the terms given in column I...

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  9. What percentage of the solar energy is trapped and utilised by the pla...

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  10. What percentage of energy available at the producer level is transferr...

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  11. Name the process in which a harmful chemical enters the food chain and...

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  12. In a food chain consisting of grass, frog, bird and insects, where wil...

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  13. If a harfmul chemical enters a food chain comprising cat, mice and pla...

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  14. Which radiations are absorbed by ozone layer ?

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  15. Name the man made component which is responsible for the depletion of ...

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  16. Name two waste materials which can be recycled.

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  17. Name the process by which the volume of solid wastes can be reduced.

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  18. If 5 joules of energy is available at producer level (plants), then ho...

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  19. State whether the following statement is true or false : Only 10 per...

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  20. Where does all the energy in living organisms originate from ?

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