Which of the following statements is not true?
a. muscle growth is typically completed by about age 30.
b. after age 30, there is typically a 10% loss of muscular strength until about 60, usually in the back and leg muscles
c. regular exercise has little impact on maintaining peak performance after age 30.
d. after age 60, there is a significant loss of lean muscle mass and flexibility

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Building glycogen from glucose molecules is an example of what

The distribution of related animals and plants across the world