Lab 1 - Points Quiz (5 pts each) x 11 lowest score = 50 pts...

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Points Quiz (5 pts each) x 11 – lowest score = 50 pts Lab exam 1 (is really important! ) = 100 pts (October 23 rd ) Lab exam 2 (practical) = 84 pts (First week in Dec) Pre-labs and work sheets used for bumps (no pre-lab = no quiz score) 0=missing; 1 below average; 2=average; 3=outstanding Safety: Use common sense! Label your lab manual. When changing the room, take your belongings! Chordata for Lab exam1: 1) Cladogram: clades with examples, unique traits for taxa, times in mya 2) Boxed and underlined comments from lab manual 3) Pre-lab and worksheet
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Traditional Systematics (kingdom, phylum, class,. ..), mostly based on morphological/functional traits (problematic for analogous traits, e.g. “flying”) Cladistics: phylogenetic systematics based on evolutionary relationship Monophyletic group: members have one ancestor AND the group contains all descendants (birds are Reptilia!) Cladogram: Monophyletic group X (e.g. Chordata) Monophyletic group Y (e.g. Tetrapoda) Extinct group B C Ancestor for B+C Ancestor for A+B+C = New trait New trait A AC B
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Evolution Adaptation to the environment (e.g. water vs land) Convergent evolution (analogous traits, e.g. endothermy in birds and mammals, flying for insects vs. birds vs. bats) Homologous evolution (homologous traits, e.g. bird wings and arms)
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This note was uploaded on 10/29/2009 for the course BIO biology taught by Professor Meighan during the Fall '09 term at University of California, Berkeley.

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Lab 1 - Points Quiz (5 pts each) x 11 lowest score = 50 pts...

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