agar
3. A group of students wants to study the effect of temperature on bacterial growth. To get the bacteria, they leave petri dishes of nutrient
open on a shelf. They then put the dishes in different places: an incubator (37°C), a lab room (21°C), a refrigerator (10°C), and a freezer
(0°C). Bacterial growth is measured by estimating the percentage of
each dish covered by bacteria at the end of a 3-day growth period.

a. What is the independent variable?

b. What is the dependent variable?

c. What variables should be standardized?

Respuesta :

The effect of temperature on bacterial growth is 37°C optimum temperature.

a.  the independent variable is nutrients.

b. the dependent variable temperature.

c. temperature should be standardized.

The bacteria grow at normal room temperature and highest quality frame temperature. The boom decelerates when the temperature reaches a freezing factor and only some kind of bacteria can continue to exist in such harsh situations. therefore the maximum growth will be seen whilst the bacteria attain the most desirable frame temperature at 37 ranges Celsius and will become almost zero at sub-freezing temperatures.

The bacterial growth of microbes is observed to occur in 4 stages, the preliminary lag phase where the microbes get adjusted to the medium and begin the usage of vitamins to multiply. The exponential or log section marks the dramatic boom in population as nutrients and area are in abundance. The desk-bound segment occurs while the multiplication rate and loss of life charge become identical. The final level is the demise segment wherein because of toxicity, byproduct accumulation, loss of area and vitamins, and opposition, the microbe starts off evolving to die speedily.

Learn more about bacterial growth here:-https://brainly.com/question/26298859

#SPJ9