Understanding Deserts

What is a key characteristic of desert ecosystems?

• High precipitation

• Arid climate

• Abundant vegetation

• Consistent temperatures

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How do cacti reduce water loss?

• By having deep root systems

• By having thick leaves

• By having spines instead of leaves

• By remaining dormant

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Why are many desert animals nocturnal?

• To find food more easily

• To avoid predators

• To conserve water and avoid daytime heat

• To migrate to cooler areas

What adaptation helps the fennec fox regulate its body temperature?

• Specialized kidneys

• Large ears

• Thick fur

• Nocturnal behavior

Why do deserts experience extreme temperature fluctuations?

• High moisture in the air

• Low precipitation

• Lack of moisture in the air

• High evaporation rates