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Bio 201 F11 Lect 14 (True) v4nr

Bio 201 F11 Lect 14 (True) v4nr - begun comments...

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mid‐semester course assessment period has begun. ‐you should receive an e‐mail today responses are completely anonymous; instructors will only see aggregated comments.
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Biology in the News [see folder on BB] chimps ( Pan troglodytes ) and bonobos (the pygmy chimpanzee; Pan paniscus ) are very closely related species and both have 98.7% DNA sequence similarity with their next closest relaIves, Homo sapiens chimps and humans both are violent; bonobos are disInctly not (homicide is unknown in the species) chimps have both homicide and male violence against females how do bonobos deal with conflict? one major way: have sex, another way: be tolerant; they seem to be substanIally more tolerant of their fellow bonobos than chimps are of fellow chimps they share more and hug each other more than chimps studies by Brian Hare of Duke University found significant altruism; bonobos sharing prized food items with others these traits may be present in bonobos because they live in an area (Congo) with plenty of food and don't have to compete for food they also have a matriarchal society; females work together and can gang up on and dominate threatening males (in chimps, males team up to dominate females and weaker males) genomic and other studies in the near future may help us understand how bonobos evolved these traits and whether our dark and generous sides are mechanisIcally similar to those of chimps and bonobos, respecIvely hUp://www.nsf.gov/news/special_reports/ science_naIon/bonobos.jsp? WT.mc_id=USNSF_51 hUp://en.wikipedia.org/wiki/Bonobo
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0 10 20 30 40 50 60 70 80 0‐5 6‐10 11‐15 16‐20 21‐25 26‐30 31‐35 36‐40 41‐45 46‐50 51‐55 56‐60 61‐65 66‐70 71‐75 76‐80 81‐85 86‐90 91‐95 96‐100 #students score Bio 201 F11 mid term 1 average 73.15 st. dev. 17.00 median 74.29
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Fungi Like animals and chaonoflagellates, are opisthokonts (“behind”+”pole”[flagellum]) These 3 groups descended from a common ancestor that probably had a flagellum Fungi have these synapomorphies AbsorpIve heterotrophy Cell wall (disInct from bacterial, plant cell walls) Cell wall has chiIn (disInct from chiIn of arthropod animals) long polymerized carbohydrate molecule that provides structural rigidity
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Fungal anatomy Four of the five recognized groups of fungi have both unicellular and mulIcellular forms No unicellular forms known in the glomeromycetes Unicellular species are called yeasts In mulIcellular species Body (vegetaIvely growing mass) is called the mycelium Individual filaments are called hyphae (sing. hypha)
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