Chapter 40

Discuss how metabolic rate changes with levels of activity, body temperature regulation, and size.

Explain why the world record speed for a 10 -m race is faster than that for a marathon.

Describe what happens in an endotherm an actotherm when outside temperature gets cold, and what happens when it gets hot.

Describe the order in which energy reserves are used in negative energy balance, such as starvation.

Name four ways in which animals capture prey and, for each, name one organism that uses it.

Name the principal sites of digestions of proteins, carbohydrates, and fats, and indicate the principal enzymes involved in thrilling down each.