While testing amylase activity, john uses a buffer of ph 6 and substrate starch. he incubates them at 104 degrees fahrenheit. all the tubes show glucose formation, except one, which had no starch solution. why did this happen?

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline. which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

What are the seven economic and social goals?

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins