lecture2F06

lecture2F06 - Learning goals: Lecture 2, Biological...

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Biological Diversity What we mean by the term; diverse organisms solve problems differently; why solving problems differently is important to you ; review some ideas from Chapter 1. The tree of life (Ch. 26) The tree of life. Learning goals: Lecture 2, Biological Diversity (Basic ideas; Prokaryotes, Protists) Readings: Chapters 1 (review), 26, 27, and 28 (read all of these, but the parts covered in lecture are by far the most likely to be on a test ). Prokaryotes (Ch. 27) Shapes; genome organization; reproduction; metabolism; representative groups; importance Protists (Ch. 28) Characteristics; endosymbiosis, colonial organisms; sexual reproduction, representative groups
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Biological Diversity What we mean by the term Diverse organisms solve problems differently Why solving problems differently is important Ideas from Chapter 1 Biodiversity is simply a term to describe the incredible variety of forms of life. Cornell University One might think that only a few types of beetles would be “enough” to make the world work, but there are actually about a quarter of a million species.
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Biological Diversity What we mean by the term Diverse organisms solve problems differently Why solving problems differently is important Ideas from Chapter 1 But an extremely important biological truth is that each species of life solves the problems of survival and reproduction differently . www.entomology.umn.edu www.lrc.rpi.edu www.augsburg.edu/home/biology/
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Ostracod picture 1 Ostracod picture 2 Biological Diversity What we mean by the term Diverse organisms solve problems differently Why solving problems differently is important Ideas from Chapter 1 lens retin light mi retina
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Biological Diversity What we mean by the term Diverse organisms solve problems differently Why solving problems differently is important Ideas from Chapter 1 An example of how differences are important: molecules of the antibiotic penicillin prevent the formation of the cell wall* in bacteria, which prevents their growth. Animal cells do not have a cell wall, just a membrane. Thus, we can take penicillin to kill bacteria living inside us, but without killing ourselves. This would not be possible if bacteria and animals didn’t solve the problem of how to contain the cell contents in different ways. * This is a simplification
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your high school biology course 1. Fig. 1.2 - properties of life 2. Fig. 1.3 - levels of biological organization 3. A closer look at cells - eukaryotic and prokaryotic (Fig. 1.8). Prokaryotes often
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lecture2F06 - Learning goals: Lecture 2, Biological...

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