The heat inside the Tupperware causes an increase in pressure and when enough pressure builds, the atoms need somewhere to go and the seal at the top is easiest to break, so the top blows off.<span />
I think the correct answer from the choices listed above is the last option. The control group to be used to test the hypothesis would be the swallows with average-length tails. A control group <span>is defined as the </span>group<span> in an experiment or study that does not receive treatment by the researchers.</span>
It is important because it creates a second copy of DNA that must go into one of the two daughter's cells when a cell divides
