D.4 & D.5 - Models and Patterns of Evolution Flashcards
Gradual change model
Theory that evolution happens in small and gradual steps over time
Mass extinctions
Sudden and complete exctinction of one or more species
Punctuated Equilibrium Model
Theory that evolution occurs with sudden periods of speciation followed by long periods of stability
Convergent evolution
Unrelated species evolve similar traits because of the similar niches and lifestyles they have
Divergent evolution
Diversification of species into a number of different species over short period of time
Adaptation Radiation
process in which organisms diversify rapidly from an ancestral species into a many new forms aka DIVERGENT EVOLUTION
Co-evolution
Evolution of one species affects evolution of another