A student has a pure culture of bacteria growing in a flask and wants to know how many living cells are in the culture at a given time. Which method should she employ to get an estimate

i would have a lunch. it's one big package of food, making it one food. : p

human didn't come from monkeys man i hate these stupid teachers

the answer is: metamorphic rocks often show the presence of fossils, also a

hope i

-lavira: )

c. heat from the poles back down towards the equator.