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Plants Move Onto Land

Early plants lived in water, where they stayed wet all the time. Over time, some grew features that helped them survive on damp land and stand up in the air.

In the picture

  1. Algae in shallow water: soft green strands that would dry out if left exposed.
  2. Moss cushion on wet rock: a low mat with root-like threads that grip the stone and hold water.
  3. Fern with roots and stem: roots that anchor it and a stem with tubes that carry water upward.
  4. Tall leafy plant: leaves with a shiny waxy surface and a stiff stem that keeps it upright.

Examples

  • Moss growing on a damp garden wall.
  • A fern in a shady, wet forest.

Quiz: Plants Move Onto Land (Age 12)

  1. What does a shiny waxy surface on leaves help a plant do?

    • Anchor to the ground
    • Keep water inside
    • Carry water upward
  2. What do roots help an early land plant do?

    • Hold on to the ground
    • Carry water up the stem
    • Make a waxy coating
  3. What do the tubes inside a plant’s stem do?

    • Carry water upward
    • Hold the plant in the ground
    • Keep the leaves shiny

The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.

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Biology, Age 12