BIOL191L - Taxonomy & Microscopy
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13 Terms
Dichotomous keys
tools used by scientists to help them determine what a specimen is
Morphological characteristics
physical characteristics
Taxonomy
the science of identifying, naming, and organizing organisms into a classification system
Systematics
classification of organisms within the context of their evolutionary histories and adaptive traits
Cladogram
branch length is not indicative of anything
phylogram
branch length is scaled to represent evolutionary distance or character change
Chronogram
branch length is scaled to represent time
Plesiomorphic
shared by all, not derived
Synapomorphic
shared, but not by all (derived)
Apomorphic
not shared, unique to a taxon
Monophyletic
includes common ancestor and ALL descendants
Paraphyletic
includes common ancestor and SOME of the descendants
Polyphyletic
collection of taxa, does not include common ancestor
Note 
Flashcards (24)