During which phase of mitosis does the nuclear envelope beak up?

20 in the formula no3, what does the subscript 3 mean?

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

According to this food web which of the following would be considered primary consumers