There are four organisms A, B, C and D. The organism A eats only the flesh of other animals as food. The organism B can eat grains, fruits and vegetables as well as meat and fish. The organism C can make the food itself from simple inorganic substances present in the environment by utilising sunlight energy. On the other hand, organism D eats only plants and their products as food.

(a) Which organism is (i) omnivore


(ii) herbivore, and (iii) carnivore ?


(b) Which organism is an autotroph ?


(c) Which organism is/are heterotroph(s)?


(d) Which organism can be a producer ?


(e) Which organism is/are consumer (s)?


(f) Give one example each of organisms which could be like (i) A (ii) B (iii) C, and (iv) D

(a) (i) B is omnivore. (ii) D is herbivore (iii) A is carnivore.

(b) C is autotroph because it can make its food.


(c) A, B and D are heterotrophs because they cannot make their food.


(d) Organism C can be a producer because it can make own food.


(e) A, B and D are consumers because they cannot make their own food and depend on other organisms for their food.


(f) (i) Tiger (ii) Human beings (iii) Green Plants (iv) Goat


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