A student was provided with a slide to view under a microscope. He was not able to spot a nucleus but could see a cell wall, a whip-like structure at one corner of the cell. Which of the following can be the slide that the student was presented?
Correct answer: C. E.coli from the stomach
- A. Red blood cells
- B. Ciliated cells of the trachea
- C. E.coli from the stomach
- D. Fungi mycellium
Explanation
E.coli being a prokaryote lacks nucleus, has a cell wall and may have a flagella
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About Scientific Reasoning
Scientific reasoning evaluates hypotheses through observations, variables, controls, measurements and experimental results. Questions involve identifying independent and dependent variables, recognising a fair test, interpreting tables or graphs, distinguishing evidence from opinion, and deciding whether data supports, rejects or leaves a hypothesis unresolved.
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