Louisiana State University

polymorphism - Answer interaction between natural selection and mutation due to natural selection acting on gene variation caused by mutation about 28% balanced polymorphism - Answer situation where there exists greater than or equal to 2 alleles for a gene, and at least 2 alleles have a frequency greater than 1% due to heterozygotes having higher fitness than homozygotes balanced polymorphism in sickle cell trait - Answer due to one point mutation affecting one ...

What are the main changes that occurred from australopithecines to Homo? - Answer Smaller, flatter face; reduction in size of dentition; scavenging and tool making What australopithecine species did we most likely evolve from? - Answer Australopithicus robustus What evidence do we have for reorganization and expansion of the human brain? - Answer Tool use Enamel degradation Larger Brain size Homo habilis characteristics and features of its hand and foot - Answer ...

Principle of Fixity of Species - Karl von Linne - Answer All species were created by God (creationist), and each species was fixed in its characteristics and was unchangeable Theory of Inheritance of Acquired Characteristics (Theory of Use and Disuse) - Jean Baptiste Lamarck - Answer All organisms have needs in order to survive (food, avoid predators and other conditions) Met by modification of organs/tissue or the establishment of new organs to satisfy these needs The continued...

Eocene Era: anatomies - Answer * Primates in this era more modern looking - prehenisle hands and feet - nails - large cranial capactiy (compared to Paleocene) - longer snout - eyes foward Eocene Era: Where are these fossils found? - Answer - fossils are found in N. America, Asia, and Europe - during this time N. American and Europe were connected with one another (by Greenland), this may explain similarity among N. American and European species Eocene Era: enviromental co...

Fossil - Answer evidence of pre-existing species Fossil - Answer can be tooth, bone, feather, imprint Porous spaces - Answer If conditions are favorable, minerals replace substances in bone and fill in ___________, converting the bone into a rock. Fossilization - Answer protection from forces of destruction (e.g. death near water or in cave). Physical, Chemical, Biological forces - Answer Bones and teeth can be destroyed by Sources of bias in fossil r...

anthropology - Answer the study of humankind in all times and places what makes anthropology different from other social science fields - Answer -studies culture -reduced ethnocentrism -requires field work and participant observation -involves comparative discipline -holistic view ethnocentrism - Answer judging another culture solely by the values and standards of one's own culture the 4 major subfields of anthropology - Answer -archaeology -biological an...

0-20 - Answer Latitudes where dark skin is most likely 60-80 - Answer Latitudes where light skin is most likely Bergmann's Rule - Answer stipulates that body size is larger in colder climates to conserve body temperature Allen's Rule - Answer The principle that an animal's limb lengths are heat-related; limbs are longer in hot environments and shorter in cold environments. prenatal stage - Answer The stage of development before birth; divided in...

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