Lab Exam 1 Flashcards
plesiomorphic character
ancestral trait that all future generations still have (and started with)
Apomorphic character
Derived; some generations have this character because came later (not from ancestor)
Synapomorphic
derived but shared traits (two species have the same trait but no from a common ancestor)
Autapomorphic
derived trait but unique to only that species
homologous features
one trait that is shared by all species due to the same path
analogous species
one trait that make multiple appearances (but not all species has it)
parsimonious
easiest tree to follow is the correct one
ingroup
traits that are on the ‘main branch’ of a phylogeny
outgroup
traits one the branches on a phylogeny
seeds
protect and nourish an embryo
vascular tissue
xylem and phloem: move nutrients and water around more effectively (many w roots)
Bryophytes
seedless and nonvascular; ex: moss and liverwort
Tracheophytes
lignin in cell wall, xylem and phloem, grow larger, drier environments; two groups: Lycophytes and Monilophytes; ex: ferns (Monilophyte)
Spermatophytes
seed plants; xylem and phloem; two types: gymnosperm and angiosperm
Taxa without fruit (seed plants)
Confierophyta, Cycadophyta, Ginkophyta, and Gnetophyta
Angiopsperm two groups
monocot and dicot
Domain Bacteria characteristic
cell wall of peptidoglycan
Three basic bacteria shapes
cocci, bacillus, spirillum