3rd Nine Weeks Review Flashcards
Naturalist that came up with the Theory of Natural Selection
Charles Darwin
The process of humans breeding organisms for certain traits
Artificial Selection
Differences between members of a population
Variation
The theory that the environment selects which organisms are the most fit
Natural Selection
Structures that suggest a common ancestor
Homologous Structures
Structures that no longer have a function in organisms
Vestigial Structures
The movement of alleles from one population to another
Gene Flow
takes place when most of the population dies and then the species rebounds from the limited gene pool (Buffalo)
Bottleneck Effect
Takes place when a few members of a population become isolated from the rest of the population
Founder Effect
Takes place when two closely related species become increasingly different over time
Divergent Evolution
Takes place when unrelated species in similar environments develop similar traits
Convergent Evolution
An inherited Trait that provides a selective advantage
Adaptation
What did scientists learn from studying Australopithecus’s fossils?
Brain cavity size increases before large brains
What trend is seen Hominid evolution over time?
Brain cavity size increases
What separates modern Homo sapiens from or most recent predecessor?
Culture
Which Homo group coexisted with modern Homo sapiens?
Neanderthals
Which Homo group are Homo sapiens most closely related to?
Homo Ergaster
Which term means to walk on two feet?
Bipedalism
The science of naming and classifying organisms (communicable regardless of language)
Taxonomy
The two-part naming system used the Genus species format
Binomial Nomenclature (Genus is capitalized and italicized, species is lowercase and italicized as well)
The Domain containing the most abundant group of organisms on Earth
Bacteria
The Domain containing organisms that live in extreme environments
Archaeabacteria
The Domain containing organisms with a nucleus and organelles
Eukarya
Used to analyze evolutionary relationships among organisms
Cladistics
Heterotrophs, cell wall made of chitin
Fungi