BISC 102 Study Guide - Final Guide: Confounding, Soapberry, Sexual Selection
19 Jan 2018
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Proximate/mechanistic: modified feathers decrease the noise created by the owl in flight (the how) Ultimate/evolutionary: silent flight allows bar owls to sneak up on prey (the why) Individuals who are better able to attract a mate = likely to reproduce more ---> sexual dimorphism. Lec 2: doing biology: hypothesis: testable explanation for a set of observations. Confounding variable: any variable other than the independent variable that may affect the results (unintended effect of manipulation) *data supports or is consistent with hypothesis, doesn"t prove: soapberry bug. Feeds on seeds of balloon vine (native plant to florida) Lec 3: darwin: darwin - interest in natural theology (design of nature as evidence of creator"s work) Species can be ranked by complexity with humans at top. Landforms = fixed, earth ~6000 years old. Use and disuse (develop useful characteristics, lose those you don"t need) Charles lyell - principles of geology landforms changed slowly due to geological processes.
