Multiple choice

Stem is positively

  1. phototropic

  2. geotropic

  3. thigomotropic

  4. heliotropic
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Stems show positive phototropism (growth toward light) due to auxin distribution. More auxin accumulates on the shaded side, causing cells there to elongate more and bend the stem toward light. Roots are positively geotropic (grow toward gravity).

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