Question

How do humans cope with the extreme temperatures during summers and winters? [3 marks]

Answer 1

Humans are homeothermic or warm blooded animals. They can cope with the extreme temperatures during summer and winters in the following ways: [1 mark]
1. During summers, when outside temperature is much higher than the body temperature, humans sweat profusely. Evaporative cooling brings down body temperature. [1 mark]
2. Extreme low temperatures of winters are usually overcome by the act of shivering. This produces heat and raises the body temperature. [1 mark]