Question

A student conducted an investigation to study how temperature affects the growth of bacteria. Bacteria were placed on four individual agar petri dishes. Each dish was placed in a different temperature environment. The student summarized his results in a table:



,begin bold,Mass of Bacteria over Time,end bold, (in micrograms)
,begin bold,Day,end bold, ,begin bold,Very Hot,end bold, (60 ° Celsius) ,begin bold,Warm,end bold, (40 ° Celsius) ,begin bold,Cool ,end bold,(20 ° Celsius) ,begin bold,Very Cold ,end bold,(0 ° Celsius)
0 0.1 0.1 0.1 0.1
1 1.3 1.3 1.1 0.2
2 2.0 2.5 1.5 0.2
3 2.9 3.5 1.8 0.3

Question
The student hypothesized that bacteria would grow best at 40 ° Celsius.



Which statement ,begin emphasis,best,end emphasis, summarizes the results?

Answer options with 4 options
A.
The hypothesis was supported by the results because the bacteria grew the most in the warm conditions.

B.
The hypothesis was supported by the results because the bacteria did not grow in the very cold conditions.

C.
The hypothesis was not supported by the results because the bacteria grew the most in very hot conditions.

D.
The hypothesis was supported by the results because the bacteria grew the most in the very hot and warm conditions.

Answers

GPT-4o mini
The best statement that summarizes the results is:

**C. The hypothesis was not supported by the results because the bacteria grew the most in very hot conditions.**

This option accurately reflects that the highest growth was observed at 60 °C (very hot), which contradicts the student's hypothesis that bacteria would grow best at 40 °C (warm).