Give three examples of the range of variations that you see in life forms around you.

Ans. The following range of variations can be seen in different life forms which occurs on Earth.

(i) Variation in size: Some microscopic bacteria are few micrometre in size whereas, blue whale and redwood trees of California are approximately of 30 metres and 100 metres respectively.

(ii) Variation in lifespan : Some pine trees live for thousands of years while insects like mosquitoes die within a few days.

(iii) Variation in body colours: Some life forms, such as worms are colourless or even transparent whereas, many of the birds, insects, flowers, etc., are brightly coloured.

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