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7.3 Homeostasis and thermoregulation

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Question 9

A shallow abrasion removes a patch of cells from only the epidermis.

Which statement correctly describes the effect of this abrasion?

[1]
A

Uncontrolled water loss decreases, and blood vessels within the epidermis are damaged.

B

Uncontrolled water loss decreases, and no blood vessels are damaged.

C

Uncontrolled water loss increases, and blood vessels within the epidermis are damaged.

D

Uncontrolled water loss increases, and no blood vessels are damaged.

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7.3 Homeostasis and thermoregulation Questions

  1. GCSE
  2. /Biology
  3. /7.3 Homeostasis and thermoregulation

78 exam-style questions on Edexcel GCSE Biology 7.3 Homeostasis and thermoregulation, covering 7.3.1 Importance of a constant internal environment, 7.3.2 Importance of homeostasis, 7.3.3a Thermoregulation via the skin and hypothalamus, and 7.3.3b Vasoconstriction and vasodilation in thermoregulation. Each one has a worked solution and a mark scheme showing where the marks go.

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