The doubling time of a type of bacteria is 20 minutes. if every bacterium reproduces, then after 20 minutes a population of 8 bacteria will have grown approximately to what size?
a. 64 bacteria
b. 16 bacteria
c. 10 bacteria
d. 28 bacteria

Jane is blood type a her husband is blood type b. jane is puzzled because their daughter is type o. explain how the daughter inherited a blood type that neither of her parents had explain your answer

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.

20 the compound al(nh3)2 has atoms of nitrogen.