Exam 11: Food, Energy, and Temperature at Work: The Lives of Mammals in Frigid Places

Which protein is found in brown fat?

It has been shown that fetuses inside the uterus do not rely on brown fat and only begin to rely on it after birth. Describe an experiment to test this conclusion.

The single greatest option large-bodied mammals have to beat the cold environment is

Which statement about white-footed mice newborns is false?

When experimental animals are fed different diets and their body temperature is monitored during subsequent hibernation, the animals that tolerate the lowest body temperature without arousal are the animals that were fed a

How do newborn piglets stay warm?

Which animal has the lowest weight-specific metabolic rate?

Which will favor nonshivering thermoregulation at birth, a reindeer or a mouse?

In winter, reindeer _______ is _______ thick.

Which hibernating animal will have the highest weight-specific metabolic rate in the summer?

An animal that weighs _______ will have the lowest weight-specific metabolic rate.

Explain the differences between brown fat and white fat.

During winter in the Arctic Circle, the temperature inside a ground squirrel hibernacula could reach as low as

When experimental animals are fed different diets and the length of each continuous hibernation bout at an ambient temperature of 5° C is measured, animals that have the shortest continuous hibernation bouts are the animals that have been fed a

Permafrost is

Which of the following is most likely the cue for animals to begin to store nutrients in preparation for hibernation?

Explain social hibernation using a specific animal example.

Which marker is used to test for the presence of brown fat?

Which newborn animal does not have brown fat?

When experimental animals are fed different diets and their subsequent hibernation times are measured, the animals that hibernate the most effectively are animals that were fed a _______ diet.