Chapter 31, Problem 11STP

Summary Introduction

To list: Three traits of mammals necessary for endotherms.

Introduction: Endotherms have higher basal metabolic rate than ectotherms and exhibits a well-developed thermal insulation.

Explanation of Solution

Endotherms are group of warm-blooded animals that are capable of generating heat. They maintain a constant body temperature being independent to the environment.

Three traits of mammals important for endotherms:

1. Hairy or furry body: The hairs keep the warmth conserved in the body.
2. The skin contains sweat glands: These glands help in maintaining the body temperature.
3. Panting and respiration: Both these phenomenon helps in keeping the body temperature normal.

Conclusion

Three traits of mammals important for Endotherms are:

1. Hairy or furry body
2. The skin contains sweat glands.
3. Panting and respiration.