Anthropology Notes Week 4
Anthropology Notes Week 4 ANTH 1100 350
University of Memphis
Popular in Biol Anth & Prehistory
Popular in anthropology, evolution, sphr
This 2 page Class Notes was uploaded by Annika Coley on Sunday February 28, 2016. The Class Notes belongs to ANTH 1100 350 at University of Memphis taught by Dr. Barton in Spring 2016. Since its upload, it has received 19 views. For similar materials see Biol Anth & Prehistory in anthropology, evolution, sphr at University of Memphis.
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Date Created: 02/28/16
Anthropology Notes – Week 4 Notes from the video Artificial selection o When humans select the traits that are favorable for individuals in a population and breed them to produce more of the favorable trait Mutations o Random changes in an individual’s DNA sequence that can be harmful, neutral, or beneficial 13.8 billion years ago the universe was created 4.1 billion years ago single cell organisms formed o Later formed multicellular organisms and the “Tree of Life” Water and sunlight were the key to potential life o Origin of life came from the ocean Permian Era o 250 million years ago o 9/10 species died during the Permian Era extinction Pangaea o 350 million years ago 1.8 million – 14 thousand years ago early humanoid up to modern humans populated the Earth Classification o Ordering organisms to show evolutionary relationships Animals o Multicellular organisms that move and ingest food Kingdom Animalia o Consists of 20 groups called phyla Chordata o Phylum that includes animals with nerve cord, gill slits, and supporting cord along the back 5 classes with vertebrates o Cartilaginous fish o Bony fish o Amphibians o Reptiles/birds o Mammals We occupy the sub class Eutheria homo sapiens species homo genus hominids family primates order mammals class chordates phylum animals kingdom Genus o Closely related species Species o Group of living organisms that can produce fertile offspring Ecological niche o Position of a species within its environment Homologies o Similarities based on descent from a common ancestor Analogies o Similarities based off of common function with no common evolutionary descent Homoplasy o The separate evolutionary development of similar characteristics in different groups of organisms Ancestral traits o Characteristics inherited from a remote ancestor, and thus not diagnostic of groups that diverged after the character Derived trait o A characteristic that is modified from the ancestral trait, and thus diagnostic of a particular evolutionary lineage Fossils o Traces of remnants of organisms that have no remaining organic material Mineralization o Process where parts of bones become transformed into stone-like structures Anti-intellectualism o Lack of knowledge on a subject and a refusal to acknowledge or consider an idea that is supported by evidence
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