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Plant development — controlling factors: Plant development is influenced by which factors? Context: Integration of intrinsic regulators (phytohormones) and extrinsic environmental cues. Choose the best overall statement.

Difficulty: Easy

Correct Answer: Both internal hormones (auxins, gibberellins, cytokinins, ABA, ethylene) and environmental factors (light, temperature, gravity, water, nutrients)

Explanation:


Given data & Concept

  • Plant development depends on intrinsic signals (phytohormones such as auxin, GA, cytokinin, ABA, ethylene) and extrinsic cues (light/photoperiod, temperature/vernalization, gravity, water, nutrients).


Approach
Selecting the comprehensive option reflects the integrated regulation of growth, differentiation, and morphogenesis in plants.


Final Answer
Both hormones and environmental factors influence plant development.

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