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CAIE IGCSE Biology 14.4.1 Homeostasis As the Maintenance Questions

Practise describing homeostasis as maintenance of a constant internal environment despite external change.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • define homeostasis as maintaining a constant internal environment

CAIE IGCSE Biology 14.4.1 Homeostasis As the Maintenance Questions question 1

[Maximum number: 1]

The kidneys filter blood, separate useful molecules from excretory wastes and control the water content of the blood.

Fig. 2.1 is a diagram of a kidney tubule and associated blood vessels. The arrows show the direction of blood flow.

Fig. 2.2 is a drawing of a vertical section through a cell from the lining of region 2 of the tubule.

Fig. 2.1

Fig. 2.1

Fig. 2.2

Fig. 2.2

The kidneys are examples of organs that help the body to maintain a constant internal environment.

State the term for maintaining a constant internal environment by negative feedback.

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