In ancient times, people believed Earth was the center of the Solar System. Which of the following makes the geocentric model impossible? The moon revolves around Earth
o Earth's gravitational force is much less than the Sun's,
0 Orbits are elliptical, not circular,
There are other planets that are closer to the Sun.

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.

How can you tell the difference between rough er from smooth er?