200
6) Students investigated how temperature affects the growth of a certain species of bacteria. The results of the investigation are shown in the table below.
Bacteria Growth
Petri Dish Temperature (°C) Number of Colonies
1 50 28
2 25° 62
3 370 130
4 50° 118
a) The maximum growth rate occurred at 37°C.
b) The bacteria did not grow in temperatures over 50°C.
c) The growth of the bacteria was not affected by temperature.
d) The number of colonies was in direct proportion to the temperature.