Patterns of Evolution Flashcards
macroevolutionary patterns are major transformations in anatomy only
False
macroevolutionary patterns are major transformations in anatomy, phylogeny, ecology, and behavior
growth, extinction, and emergence
examples of macroevolutionary patterns
Clades are a group of ____
organisms
Fossils are classified with the ____ techniques to identify living _____
same, organisms
This shows/ theorizes how some anciet organism are related to present organisms
ex. family tree (kind of)
Cladograms
The more varied adaptations in clades, the bigger chance of survival
true
if the rate of speciation is equal to or greater than extinction…
there will be less extinction
Background Extinction
Species become extinct when they don’t adapt to their environment/ competition
Mass extinction is a dramatic or tragic change that affects the species and ecosystems _____
globally
Gradualism is when a species evolves ____
slowly/steadily
-> mostly in a state of Equilibrium
Punctuated Equilibrium is when Equilibrium is ____ with short periods of ___ change
interrupted, rapid
Genetic Drift affects ___ populations that is isolated so it won’t take too long until/when there is ___
Small, evolution
Mass Extinction takes away a lot of the _____ and ____ which gives survivors easier time to adapt
environment, competition
Adaptive Radiation is..
when single species adapt into distinct several species
Convergent evolution is when the ____ of unrelated organisms is ____.
Organisms live in similar environment
appearance, similar
