Evolutionary Bio ch 4

Evolutionary Bio ch 4 - Practice problem Figure A and B...

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Practice problem Figure A and B show the results of experiments where offspring body size is compared to parental body size in two populations of lizards. What can you conclude from these data? (choose all correct answers) a) Body size is not variable in either population b) Body size is under natural selection in population B. c) Variation in body size is not heritable in either population. d) Natural selection can cause body size to evolve in population B. e) Variation in body size is highly heritable in population B, but not A. f) Body size is not under natural selection in these populations. g) Body size is variable in both populations. h) Natural selection can cause body size to evolve in population A.
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Phylogenetics OR Evolutionary Trees Tree thinking Building phylogenies Answering questions with phylogenies
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Phylogeny A depiction of the evolutionary relationships between organismal lineages as they change through time
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Levels of detail in genetic history— from individuals to a branch on the phylogenetic tree
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Levels of detail in a map—from individual streets to a cross-country highway
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Tree Thinking Is the frog more closely related to the Fsh or to the human ?
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Tree Thinking Tips: extant organisms
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Tree Thinking Time now the past
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Tree Thinking Time
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Tree Thinking Nodes: most recent common ancestor
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Tree Thinking Bifurcations: Speciation, or lineage splitting, events
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Tree Thinking Monophyletic group (or clade): an ancestor and all of its descendants OR all of the descents of an ancestor
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Tree Thinking Non -monophyletic group
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Evolutionary Bio ch 4 - Practice problem Figure A and B...

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