Unit 18 · Variation and Selection

Question Bank

Cambridge IGCSE Biology 0610 · 80 questions

Q77Variation and Selection

Which feature helps a cactus reduce water loss?

(a)Large thin leaves

(b)Stomata on upper surface

(c)Spines instead of leaves

(d)Large air spaces

Correct answer: (c) Spines instead of leaves

Explanation: Spines reduce surface area for transpiration.

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