Exercise increases a body 's strength.
Exercise promotes the formation of more mitochondria.
The formation of more mitochondria increases a body's strength.
The formation of more mitochondia does what?
Options:
a. increases a body's strength
b. lowered energy cost
c. absorb light energy
d. Plant growth is reduced
e. They grow better
f. to move people
g. Help plants grow
h. duplicate itself