Final answer:
Mammals monitor the ambient temperature by peripheral cold-sensitive neurons located in the skin and viscera, the given statement is true because it use to monitor ambient temperature.
Step-by-step explanation:
They also have hair or fur and a layer of fat to conserve body heat. These adaptations allow mammals to regulate their body temperature. These neurons are able to detect changes in temperature and send signals to the brain to initiate appropriate responses to maintain stable body temperature.
Mammals also have various mechanisms to conserve and generate heat. They have hair or fur that traps a layer of warm air next to the skin. Mammals can also raise their hair or fur to create an even better insulating layer. Additionally, mammals have a layer of fat under the skin that helps to insulate the body.
Overall the given statement is true, these adaptations allow mammals to monitor and regulate their body temperature in response to changes in the ambient temperature.