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3 (a) Figure 3 shows a section through the skin - Edexcel - GCSE Biology - Question 3 - 2022 - Paper 1

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3 (a) Figure 3 shows a section through the skin. (b) (i) 37.5 °C (b) (ii) An explanation including:

Worked Solution & Example Answer:3 (a) Figure 3 shows a section through the skin - Edexcel - GCSE Biology - Question 3 - 2022 - Paper 1

Step 1

(a)(iii) An explanation including two from:

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Answer

  1. Uncontrolled muscle contraction occurs, which generates heat.
  2. As a result, the body temperature increases or becomes warmer.

Step 2

(b)(i)

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Answer

37.5 °C

Step 3

(b)(ii) An explanation including:

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Answer

  1. There is a decrease in temperature (between 0 - 4 hours).
  2. This occurs because the body is at rest or asleep.
  3. There is a lower rate of respiration, leading to less heat energy being generated or released.

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