for Ohlone spr11 Biol130 sections 6 & 7

1. Observations: I hear that eating before you sleep makes you gain weight. -things you have directly observed, or heard, or read about (including previous studies) I’ve been eating dinner before sleeping now that Biol 130 has started, and I don’t seem to be gaining weight….

2. Hypothesis: If eating before sleeping leads to weight gain, then a group of people who consistently eat before sleeping will gain more weight then people who don’t.

3. Experiment : All regular meals, except dinner at 1 hour within sleeping All regular meals, dinner at 6 pm 1 month This is the experimental group- We are changing something about the way things normally are This is the control group. They provide a “normal” value for comparison. Weight compared to a month before 15% had weight gain of 3 lbs or more 75% same weight 15% weight loss 3 lbs or more 5% had weight gain of 3 lbs or more 85% same weight 7% weight loss 3 lbs or more Conclusion: Evidence points to more weight gain in late dinner before sleep

4. What are the experimental and control groups in this study? Experimental: compartments with Bounce sheets Control: compartments without.

5. From the original paper, the experiment: … We raised larvae of the common crop pest Pieris brassicae on commercial cabbage leaves, simulated predator attacks throughout the larval period, and measured life-history responses. Larvae were induced to regurgitate once per day ( treatment 1 ); larvae were induced to regurgitate every second day ( treatment 2 ); larvae were induced to regurgitate every third day ( treatment 3 ); larvae were induced to regurgitate every 5 days ( treatment 5 ); larvae were taken from the culture cabinet, the boxes were opened, but larvae were not otherwise disturbed. Which group is the control? There are 6 groups of caterpillars (larvae) described: This group