General Overview Tip: 'I am one who uses the pill bug lab and I find it one that the AP kids can get really creative with. They designed their own behavioral studies, and asked questions like 'are the rollers faster or slower movers than the walkers?' They designed racecourses for the bugs, deciding that the rollers were somewhat slower. Other students checked to see if they preferred light over dark, or moist over dry, and one group even decided to use sandpaper versus filter paper to see if they liked rough better than smooth. I did a MetaCrawler search on Explorer to find out more about sow bugs and found some great sources with pictures and a number of explanations of the physiology of these fascinating crustaceans. They don't eat much, don't smell too disgusting, and kids can handle them with little difficulty. I have worked for over 20 years with Drosophila and have a whole lab designed around the Dance of the Fruit Fly, but I think that for behavioral studies, the pill bug is much easier to use.' — Eloise Farmer, Torrington High School, Torrington, Connecticut. 2/3/99 Tip: 'This lab makes a wonderful introduction to scientific inquiry and experimental design. In fact, this is usually the first lab we do of the year, and we spend some considerable time with it. Descargar hamachi full espanol 1 link. All of my kids first do the same basic experiment of wet versus dry in the 'choice chambers.' Then they all design their individual experiments with a lot of creativity. One group ran up to the physics lab and returned with the light boxes for generating different colored light, and discovered that the pill bugs have a very strong aversion to red light. The previous year we had very inconclusive results in light/dark studies in the classroom under the fluorescent lights (which are not full spectrum bulbs). We then get into statistics, chi-squares, etc., and what does 'significant' mean in an experiment? It provides a great way to begin the year with an easy, fun experiment and gives me material to build on all year for experimental design.' — Franklin Bell, St. Mary's Hall, San Antonio, Texas. 2/3/99 Pre-Lab Preparations Tip: 'I used the pill bug lab this year and last. It works well and the students get a kick out of 'playing' with the bugs. We don't order the pill bugs. Just set up a pile of bricks in a shaded area and they will come. (At least, here in Massachusetts.)' — Mark Stephansky, Whitman-Hanson Regional High School, Whitman, Massachusetts. 2/3/99 Tip: '[To house pill bugs.] I just used some dead leaves and pieces of rotting wood that I gathered outside. (The bugs came in moist paper towels, but I figured they needed more 'natural' stuff.) I kept them in a big coffee can with bedding, some vegetables, and window screening on top. And a few crumpled-up paper towels I could keep moist. I'd never done the lab before, either. The bugs appear to have great attraction for each other, and next year I want to have my students work with individuals, as opposed to groups. It seemed from our wet/dry paper results (about half the class got wet, about half got dry) that wherever a bug settled down first, that's where all the rest settled.' — Anne Soos, Stuart Country Day School, Princeton, New Jersey. AP Lab 7 Genetics of Organisms MM Chi Square Analysis 6 Molecular Genetics 9 16. Anatomy Lab 11 Plant Structure & Function 12 35, 36, 37, 38, 39 AP Lab 9. Will complete all 12 of the labs in the AP Biology Lab Manual for Students. Molecular Biology AP BIOLOGY Lab 6. Pre-Laboratory Questions. Accelerated Manual AMB 3-19-11 Author: afox. 3/23/99 Procedure Modifications Tip: 'When I do the pill bug lab, I have my students place them in a petri dish lined with a dampened filter paper disk. I think the most important part of this portion of the exercise is to get them to really LOOK at the organism, so I give each student a hand lens, and then begin asking them questions: How many legs? What other appendages? How do they seem to detect their environment? Hitman absolution trainer 1.0 447.0. How many segments? What do the eyes look like? Are they all the same species? How do they grow? Then I take quite a bit of time for the sketching part of this activity, for this is when they really SEE the organism. For the portion of the lab where students place pill bugs into a wet/dry choice chamber, watch for the group that has a strong light on one end of the table, or where a lot of jostling occurs. At the end of the time trial, I think it is important to point out that this is NOT a controlled experiment, and bring attention to the different variables that may have been introduced accidentally. This will be helpful when the students are asked to design their own controlled experiment in the last portion of the lab—probably the most important part! (See The Lab Bench at The Biology Place,, for more information.)' — Theresa Holzclaw, Clinton, Tennessee.
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