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7.3 Homeostasis and thermoregulation

Homeostasis maintains a [     ] despite internal and external changes.

A

stable internal environment within narrow limits

B

completely unchanging internal environment at all times

C

stable external environment within narrow limits

D

constantly changing internal environment without limits

7.3 Homeostasis and thermoregulation Flashcards

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

Flashcards for Edexcel GCSE Biology 7.3 Homeostasis and thermoregulation, covering the key terms, definitions and processes you need to recall for Paper 1 and Paper 2. 23 cards drawn from 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, matched to the Edexcel GCSE Biology (1BI0) specification. Recall questions account for roughly 40% of marks at GCSE Biology, so these target the marks you can secure before the paper starts.