Adaptation in Desert and Cold Environments

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Questions and Answers

How do starred agama lizards protect themselves from extreme heat?

  • By sunbathing to increase temperature
  • By burying themselves underground
  • By swimming in water bodies
  • By finding shaded areas (correct)

What physical adaptation helps penguins stay warm in freezing temperatures?

  • Large body size
  • Scaly skin
  • Insulating layer of fat (correct)
  • A layer of thick fur

What feature of palm leaves aids in surviving extreme heat?

  • Deep root system
  • Bright coloration
  • A broad surface area
  • Waxy protective layer (correct)

What helps penguins' feet not freeze on the ice?

<p>Increased blood flow in blood vessels (B)</p> Signup and view all the answers

Which of the following correctly describes adaptation in living organisms?

<p>A characteristic that helps in survival and reproduction (A)</p> Signup and view all the answers

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Study Notes

Adaptations of Living Organisms

  • Starred agama lizard regulates body temperature by seeking shade during hot days in the desert.
  • Palm leaves possess a waxy layer that shields them from extreme heat, enhancing survival in hot climates.
  • Humans adapt to hot climates by utilizing umbrellas and wearing lightweight clothing.

Penguin Adaptations for Cold Environment

  • Penguins are specially adapted to survive in the frigid conditions of Antarctica, one of the coldest regions on Earth.
  • An insulating layer of fat and thick downy feathers trap warm air against the penguin's skin, maintaining body temperature in extreme cold.
  • Despite lacking feathers and fat on their feet, penguins can stand on icy surfaces for extended periods, thanks to specialized blood circulation in their feet.

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