Researchers use mice in their studies of sensation and perception because a) mice are small and do not need a lot of space.
b) mice are genetically similar to humans.
c) All of these
d) they are low maintenance and mild mannered.

What if you were not responsible for planning the menu, and you noticed that the portions provided were often very large? what resource(s) could you use to understand the appropriate portion sizes for children? a. national and state health standards b. cooking course c. ask parents d. ask the school nurse and guidance counselor