biological evolution - ANSWERSan inherited change in a group of organisms through time
phylogenetic tree - ANSWERSa graphical representation that shows that organisms show various degrees of similarity because they are, to various degrees, related by genealogy
cultural evolution - ANSWERSmuch...
Evolution Exam 1 Questions & Answers
biological evolution - ANSWERSan inherited change in a group of organisms through
time
phylogenetic tree - ANSWERSa graphical representation that shows that organisms
show various degrees of similarity because they are, to various degrees, related by
genealogy
cultural evolution - ANSWERSmuch faster than biological evolution; includes
written/spoken language, tool use, art/religion, teaching
Jean Baptiste Lamarck - ANSWERSthought inheritance of acquired characteristics was
because individuals adapted to environment and those changes were inherited
Evolution by Natural Selection - ANSWERS-organisms produce more offspring than can
survive
-populations are constant over long periods due to food and space limitations
-individuals show variation in the ability to survive
-some variations are heritable/genetic, they pass on to the next generation
Explained by Natural Selection - ANSWERS-diversity of life
-relationships among organisms
-change in diversity over time
-change in form over time
-adaptation
artificial selection - ANSWERSselection by humans of a chosen trait of "captive"
populations. differs from natural selection in that the criterion for survival & reproduction;
is the chosen trait, rather than fitness as determined by the entire genotype
microevolutionary - ANSWERSchange over time
macroevolutionary - ANSWERSdescent with modification. observed in fossil record
homology - ANSWERSshared feature that is inherited from common ancestor:
-shared because of genealogy
-structure & form inherited, not necessarily function
-limb homology in vertebrates
-embryological similarity
vestigial organ - ANSWERSoccurring in a rudimentary state, as a result of an
evolutionary reduction from a more elaborated, functional character in an ancestor:
-supports notion that species have changed through time
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