How did looking at fossils help Darwin form his theory of natural selection?

a axis of a graph is a color or shade so we can all go outside and have a party so we can eat   some grilled cheese sammiches and broccoli and have some ugly fun times

i don't know why i put this, i know its not the i was just bored : p

delete this answer while you can

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?

what are the options