Dale is following this recipe to make shortbread fingers. Dale uses 150 g of butter.
How many shortbread fingers does he make?

Recipe: Makes 20 fingers
125 g butter
55 g sugar
180 g flour​

a polymer is a chainlike molecule made up of small molecular units. these small molecular units are called monomers. monomers of polymer can be joined together either naturally or synthetically.  

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms

geologic time scale (for gradpoint) =)