Question 20
Spot as many organisms as possible in the puzzle given as Figure 1.2 by encircling them as shown. Write the names on a sheet of paper and categorise them into autotrophs and heterotrophs. Classify the heterotrophs into herbivores, carnivores, omnivores and saprophytes.

Number of organisms: 22

(Some examples are given. You may find the rest of the organisms.)

i) The autotrophs are the organisms which can prepare food themselves through the process known as photosynthesis.

Autotrophs – Rose, Mango, Bhindi, Carrot, Banyan, Tulsi, Ginger, Yam

ii) The heterotrophs are organisms that take in ready-made food prepared by the plants.

Heterotrophs – Elephant, Ant, Yeast, Tiger, Fox, Mice, Owl, Cow, Crow, Rabbit, Bee, Fish

iii) The organisms which feed on plants and plant products are called herbivores.

Herbivores – Elephant, Cow, Rabbit, Bee

iv) The organisms which feed on other animals or herbivores are called carnivores.

Carnivores – Fox, Tiger

v) The organisms which feed on plants, as well as other animals, are called omnivores.

Omnivores – Ant, Mice, Owl, Crow, Fish

vi) The plants which derive nutrition from dead and decaying organisms are called saprotrophs. or saprophytes.

Saprophytes – Mushroom, Yeast