iGCSE Biology (0610)-14.4 Homeostasis – iGCSE Style Questions Paper 1

Question

Foxes are mammals. The table shows adaptations of four different species of fox.

Which fox is best adapted to live in a hot dry desert region?

▶️Answer/Explanation

B

The fennec fox (Vulpes zerda) is best adapted to live in a hot, dry desert region based on the provided characteristics. Fennec foxes have a number of adaptations that help them thrive in such environments:

  1. Behaviour mainly active at night: Fennec foxes are primarily nocturnal, which means they are most active during the cooler nighttime hours, avoiding the intense heat of the desert day.

  2. Ear size: very large: Fennec foxes have exceptionally large ears that help them dissipate heat. These ears have a high surface area relative to their body size, allowing them to radiate excess heat and regulate their body temperature.

  3. Fur colour: Pale brown: The pale brown fur of fennec foxes provides them with camouflage in the sandy desert environment, helping them blend into their surroundings and avoid predators.

  4. Daily volume of urine produced: small: Fennec foxes have evolved to produce minimal urine, allowing them to conserve precious water in the desert where water sources are scarce.

All of these adaptations collectively make the fennec fox well-suited to survive and thrive in the harsh conditions of a hot, dry desert region.

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