Human Biology: Concepts and Current Issues
Human Biology: Concepts and Current Issues
7th Edition
ISBN: 9780321821652
Author: Michael D. Johnson
Publisher: Benjamin Cummings
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Chapter 21, Problem 9CR
Summary Introduction

To review:

The causes behind the increase in longevity of the United States (US) population in last 100 years.

Introduction:

Longevity can be defined as the longest life expectancy of a person. The average lifespan in the US is increasing. Lots of factors have caused the decline in death rate and increased longevity. The primary reason for the increase in longevity is a reduction of death rate resulting from accidents and diseases.

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