In which of the following animals does the body temperature NOT depend on the temperature in the environment?

The correct answer is "Birds and mammals".

Key Points

• Warm-blooded animals known as homeotherms, such as birds and mammals, maintain a constant body temperature and are therefore unaffected by environmental temperature changes.
  • Example: Bats, pigeons, and rabbits are a few examples of homeothermic creatures.
• Regardless of the environment's temperature, the body temperature of mammals and birds generally remains constant.
• No matter what the outside environment is like, homeothermy regulates body temperature internally to keep it steady.
• Although not always, this internal body temperature is typically higher than the near surroundings.
• Therefore, the correct answer is: Birds and mammals

Additional Information

• The capability of an organism to maintain its body temperature within predetermined limits despite drastically varying environmental temperatures is known as thermoregulation.
• The hypothalamus, a tiny part of the brain, regulates body temperature. The neurological system, muscles, organs, and glands get messages from the hypothalamus if it determines that the body's temperature is abnormally high or low. These signals aid in warming up or cooling down.
• Fishes are poikilothermic because they cannot regulate their body temperature and have a wide range of variations in their core body temperature.
• Reptiles are said to as poikilothermic animals since they can regulate their own body temperature in response to the ambient temperature.
  • Example: Turtle, Snake, and Frog.