Control group
Explanation:
The control group usually serves as a reference for comparison during a scientific investigation.
What is a control group?
- The control group is an experimental group not being tested for.
- it does not receive any modification or design from the scientist.
- It is designed as a reference for the main experiment
- Often times, it is isolated from the main experiment and the independent variables cannot influence the outcomes of the experiment.
Learn more:
Controlled experiment brainly.com/question/1621519
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Answer:
Facultative anaerobe.
Explanation:
Bacteria can be classified on the basis of their nutrition requirement and on the basis of different condition of oxygen in which they live. Two main types of bacteria are aerobic bacteria and anaerobic bacteria.
Anaerobic bacteria grows in the absence of oxygen. The facultative anaerobe bacteria can undergoes the process of respiration in presence as well as in absence of oxygen. Thioglycollate chemicals helps to known the aero tolerance of the organism. The turbidity on the whole tube indicates that the bacteria is facultative anaerobe.
Thus, the correct answer is facultative anaerobe.
