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Question 3
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ACTIVITY IN A CHANGING CLIMATE

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Question 3

 

Butterfly

Cold-blooded animals can regulate their body temperatures very well by changing their behaviour. To warm up quickly in the morning they will bask in the sun.

The clouded yellow butterflies are found all over Europe. To bask these butterflies keep their wings closed and turn their body so that their folded wings are fully exposed to the sunlight.

Three species of clouded yellow butterflies and their distribution maps are given below.

Pale clouded yellow

Common clouded yellow

 

Northern clouded yellow

(a) Describe the areas where each species lives.

(b) What differences can you observe between the colours of these butterflies.

(c) Is there a relationship between the colour of the butterfly and its distribution in Europe?

(d) Dark colours absorb heat energy from sunlight and pale colours reflect it. Can you explain the advantage in having dark or pale coloured wings for these butterflies?

 

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