_ of the periodic table are called _ . Elements in the same group have similar properties. (Chose ALL that APPLY) *

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

How does natural selection change thephenotypes within a population over time?

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.