Certified Wildlife Rehabilitator Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Which of the following is true about mammalian thermoregulation?

All mammals can withstand extreme cold

Fur loss impairs their thermoregulation

Fur loss impairs thermoregulation because fur provides essential insulation that helps to retain body heat in mammals. This insulation is crucial for maintaining a stable internal temperature, particularly in colder environments. When an animal loses its fur, it becomes more susceptible to temperature fluctuations, as the loss of this insulating layer can lead to greater heat loss.

For instance, animals that have undergone fur loss—whether due to illness, stress, or other factors—may struggle to maintain their body temperature and could experience hypothermia in cold conditions. Each species may have different adaptations and strategies for thermoregulation, but fur is a common feature that aids in heat retention for many mammals, emphasizing the importance of this characteristic for effective thermoregulation.

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Only large mammals can regulate their temperature

All mammals regulate body temperature the same way

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