Which statement best describes the amount of catalyst that remains at the end of a reaction?
a)more catalyst is present at the end than at the beginning of the reaction.
b)less catalyst is present at the end than at the beginning of the reaction.
c)the amount of catalyst is the same at the end as at the beginning of the reaction.
d)the catalyst is consumed by the reaction, so none remains at the end of the reaction.

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

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.

Select all that apply. why are common names not a good reference to a species? common names can be in different languages common names vary with location common names vary with culture common names vary with species color