• Plants have specialized organs that help them survive and reproduce in a great diversity of habitats.
  • Major organs of most plants include roots, stems, and leaves.
  • Leaves are the keys not only to plant life but to all terrestrial life.
  • The primary role of leaves is to collect sunlight and make food by photosynthesis.
  • The form and arrangement of leaves maximizes light exposure while conserving water, reducing wind resistance, or benefiting the plant in some other way in its particular habitat.
  • The leaves of many plants turn from green to other, glorious colors during autumn each year.
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