Test 1 Flashcards
Natural selection
Process in which individuals that have certain inherited trait tend to survive and reproduce at higher rates than do other individuals because of those traits
Artificial selection
Humans have mimicked the process of natural selection for thousands of years by breeding plants and animals to develop desired characteristics
Divergent evolution
Closely related species that have similarities because of common ancestry, example wolf to fox and domestic dogs
Convergent evolution
Similarities are seen among organisms in species not closely related due to similar selective pressure and adaptations not direct ancestry, example birds, butterflies, bats have no common winged ancestors
Fossil record
Dated by association with geologic strata
Continental drift
Plate tectonics
Phylogeny
Study of evolutionary relationship of species or groups of species
Systematics
Method of classifying organisms an determining their evolutionary relationships
Taxonomist
Scientists who classify organisms and designs taxonomist systems
Hierarchy
Domain, kingdom, phylum, class, order, family, genus , species
Genus
May contain more than one species
Family
Contains similar species in different genera
Order
Includes related familes
Class
Many orders
Phylum
Many classes