Study Questions - Biology 180 Week 1 Study Questions Spring...

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Biology 180 Week 1 Study Questions Spring 2010 Do these questions with your study group (~4 people). Follow these rules: Everyone must participate in every question that you work on. Listen to each person’s contributions. At least once during each study session, each group member should challenge another member’s ideas. Assign roles: If your group isn’t part of a large session at CLUE or Tribeta or the IC, one person should serve as timekeeper; one as organizer (keeping people on task and getting a consensus on when to move on to the next question for discussion); one as group-dynamics checker (making sure everyone is heard and respectful); one as challenger (making sure that all ideas are carefully considered). Format: 1. Each person should write answers to the first 4 questions on their own, in 15 minutes or less (these questions would be worth about 30 points on an exam). 2. Discuss each question (3 minutes each). 3. Exchange papers and use the answer key on p3 to grade each other for full credit, partial credit, or no credit (1 minute each). 4. Read through the rest of the question list. Each person should decide which question they want to work on most (meaning that they are LEAST confident about). 5. Go through the rest of the questions, taking turns to decide which to discuss next. 6. Each member of the group should write 2 exam questions, based on key concepts from this week, identified in your weekly notes summary. Use these questions to quiz each other. 1. What does it mean to say that scientific knowledge is contingent? 2. In some parts of the world, tiger penis is prized as an aphrodisiac for males. The working hypothesis is that because the tiger is considered aggressive, ingestion of its penis tissue will increase sexual desire in humans. What is the physical basis of this proposed mechanism? 3. Dr. Janneke Hille Ris Lambers (Go Dawgs!) has found that when tree seeds are at high density, few germinate. One hypothesis to explain this pattern is that predation and disease increase when seed density is high. a) State the null hypothesis.
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b) To test her hypothesis, she created many plots in a forest where seed density is high and many plots where seed density is low. In half of these plots she’s excluding all predators and diseases. The other half of the plots will be left alone. In terms of the hypothesis being tested, what is the one thing that differs between the high density plots? c) State two other conditions that might affect how many tree seeds germinate and that should be controlled in this experiment. d) She plans to control for these conditions by putting the plots in random locations. Why is this approach valid? e)
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Study Questions - Biology 180 Week 1 Study Questions Spring...

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