Multiple choice

Leaves are alternately arranged in:

  1. sunflower

  2. polyalthia

  3. both (a) and (b)

  4. guava
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Both sunflower (Helianthus) and Polyalthia exhibit alternate phyllotaxy, where a single leaf is attached at each node, and successive leaves are arranged spirally around the stem with no two leaves directly above/below each other. Guava has opposite superposed arrangement, so it's excluded. Therefore, option C correctly identifies both plants with alternate arrangement.

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