How much power in the United States is produced by fossil fuels?
A) under 40%
B) about 50%
C) over 60%
D) 100%

Which statement about inheritance is true? o girls get most of their traits from their moms, boys get most of their traits from their dads. o male offspring will always have an x-linked genetic disease if the mom is a carrier o fathers always determine the gender of the offspring in humans. o males never have y chromosomes.

Isotopes of the same element have differ in their

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous