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plate movements brought all previously separated landmasses together into supercontinent (end of Paleozoic era)
species from different evolutionary branches may come to resemble one another if the live in similar environments
harvest energy from inorganic chemicals, use carbon from carbon dioxide to make organic molecules
group of helical bacteria that spiral through environment by means of rotating internal filaments
gram positive bacteria
group of bacteria with a cell wall structurally less complex, contains more peptidoglycan than that of gram negative bacteria
components of outer membrane of gram negative bacteria, released when cell dies or digested by defensive cell
process by which protist diversity hypothesized to have evolved from symbiotic association that arose when autotrophic eukaryotic protists was engulfed by heterotrophic eukaryotic protist
heterotrophic protists that have modified mitochondria that generate some energy anaerobically
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