Nephrons are part of which of the following structures?
a. neurons
b. heart valves
c. kidneys
d. liver

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?

When a human or animal consumes food, the carbon in that food is most likely to be converted into which of the following elements? a. carbon remains carbon b. nitrogen c. oxygen d. hydrogen

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geographical equipment to analyze the composition of rocks