click below
click below
Normal Size Small Size show me how
Biology Lab
Unit 1
Term | Definition |
---|---|
geologic record | divided into Archaean, the Proterozoic, and the Phanerozoic eons. |
cambrian explosion | refers to the sudden appearance of fossils resembling modern animal phyla in the Cambrian period (535 to 525 million years ago) |
phylogeny | the evolutionary history of a species or group of related species |
the discipline of systematics | classifies organisms and determines their evolutionary relationships |
taxonomy | the ordered division and naming of organisms |
binomial | two-part scientific name of a species |
the first taxonomic group | domain |
the second taxonomic group | kingdom |
the third taxonomic group | phylum |
the fourth taxonomic group | class |
the fifth taxonomic group | order |
the sixth taxonomic group | family |
the seventh taxonomic group | genus |
the eighth taxonomic group | species |
taxon | a taxonomic unit at any level of hierarchy |
excavata | a supergroup; recently proposed clade that has emerged from morphological studies of the cytoskeleton |
diplomonads | a part of the excavate supergroup; have modified mitochondria called mitosomes, obtain energy from anaerobic biochemical pathways |
mitosomes | lack functional electron transport chains and cannot use oxygen to ex |