What benefit do nitrogen-fixing organisms provide in an ecosystem?

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

Monitor and apply fix up stratorgies

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.