<span>A biotic factor is a living thing in an ecosystem. The biotic factors can be separated into three different groups; producers, consumers, and decomposers. Examples of biotic factors are animals, plants, trees, bacteria, and molds.</span>
Answer:
Explanation:
The O-F glucose test (oxidative-fermentation) is used to determine whether an organism is performs oxidative or fermentative metabolism.
Oxidative metabolism (i.e respiration) takes place in the presence of oxygen while fermentative takes place in the absence of oxygen.
Facultative anaerobes can carry out both fermentation and respiration.
The O-F medium has glucose, peptones and a pH indicator. When the pH of the medium is acidic, that is glucose has been broken down, the medium turns yellow. When it is basic, it turns blue implying that peptone and not glucose had been broken down.
The sealed tube is overlaid with oil so as to prevent oxygen from getting in, making it anaerobic.
The unsealed tube allows oxygen.
Enterics would be yellow is both tubes because they are facultative anaerobes and can grow in the presence or absence of oxygen, hence they carry out both respiration and fermentation.
Answer:
The responding variable is the dependent variable.
Answer:
Analysis
Explanation:
This is the process of analyzing and organizing data in tables, graphs, etc. A. experimentation is wrong because it is testing your hypothesis. You take data from experimentation. D. hypothesis is wrong because a hypothesis means thinking of what you THINK will happen in your experiment using an if, then statement. hope this helped!
