BIOL 1202 : 1202 Exam 2 Review
Document Summary
Boundaries b/t units in the geologic time scale are marked by dramatic biotic change. Did king philip come over for gumbo sunday. Domain kingdom phylum class order family genus species. Taxon (taxa): the named taxonomic units in the taxonomic hierarchy. Epithet: reffering to one species in a genus. Genus: can tell you hints of what organisms look like. Systematics (darwin): naming and classifying organisms according to their evolutionary relationships. Phylogentic trees: hypothesized genealogy traced back to last common ancestor through hierarchical, dichotomous branching. Cladistic: the principles that guides the production of phylogenetic trees aka cladograms. Clade (lineage): monophyletic group (an entire branch): an ancestral species and all of its descendants. Cladistic analysis: fossils provide morphological data for extinct species, whereas comparisons of multiple types of traits-including molecular-do so for extant species. Convergent evolution: can produce superficially similar traits that lack homology w/ one another. Sequences of dna and rna (nucleotides) and proteins (amino acids) are used as characters.
