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Bio 103

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MULTIPLECHOICE SECTION INSTRUCTIONS: Read all instructions carefully. Please answer all questions. Each question is worth 0.5 points. The Multiple Choice section is worth 40 points.

**Do not enter your answers here.** Type in the letter you select as the best answer on the Answer Sheet provided by your instructor.

1. Which of these would be a valid hypothesis? A) Human history is determined by a series of supernatural events. B) Humans should help in the conservation of other animal species. C) Humans are controlled by forces beyond our understanding. D) Humans and bacteria share a common genetic code.

2. In the scientific method, a hypothesis . E) is a statement of fact F) can only be tested once G) is usually proven to be correct H) is a proposed explanation based on observations I) none of the above

3. What is the correct sequence of steps in the scientific method? I. State the problem II. Analyze and interpret the data III. Share the results with other scientists IV. Develop a hypothesis V. Design and perform an experiment to test the hypothesis

A) I → II → III → IV → V B) III → I → V → II → IV C) V →IV → III → II → I D) I → IV → V → II → III E) V → II → I → III → IV

4. To test a hypothesis about a given variable, experimental and control groups are tested in parallel. Which of the following best explains the dual experiments? J) In the experimental group, a chosen variable is altered in a known way. In the control group, that chosen variable is not altered so a comparison can be made. K) In the control group, a chosen variable is altered in a known way. In the experimental group, that chosen variable is not altered so a comparison can be made. L) In the experimental group, a chosen...

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