Chapter 9.1, Problem 35E

LIFE SCIENCE APPLICATIONS

Life Span Researchers have estimated the maximum life span (in years) for various species of mammals according to the formula

$L\left(E,P\right)=23E^{0.6}{P}^{-0.267}$,

where $E$ is the average brain mass and $P$ is the average body mass (both in $g$). Source: The Quarterly Review of Biology. Find $L$ for the following species. Do these values seem reasonable?

a. Black rat, with $E=7.35\text{g}$, $P=150\text{g}$

b. Humans, with $E=14,100\text{g}$, $P=68,700\text{g}$

c.

d.