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Midterm 2 Study Guide

by: Anna Joy

Midterm 2 Study Guide Anthropology 260

Anna Joy
GPA 3.34
Luke Premo

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Luke Premo
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This 2 page Study Guide was uploaded by Anna Joy on Monday March 9, 2015. The Study Guide belongs to Anthropology 260 at Washington State University taught by Luke Premo in Spring2015. Since its upload, it has received 132 views.


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Date Created: 03/09/15
Anthropology 260 Exam 2 Study Guide What to know General Primate traits erectupright posture erectupright posture 5 digits on hands and feet flexible digits nails instead of claws opposable thumb big toe tackle pads on finger tips retention of clavicle mobile front limbs generalized heterodont different forms dentition molars premolars canine incisors reduced emphasis on sense of smell reduced snout most primates lack a rhinarium binocular color vision fully encloses eye orbits primate life history traits small littersfew offspring prolonged period of infancy and dependency long lifespan for body size heavily dependent on learned behavior mostly live in relatively large social groups Three Hypotheses of the evolution of primates 1 Arboreal Hypothesis 2 Visual predator hypothesis 3 Fruitflowereating hypothesis 4 groups of primates 1 Prosimians 2 New World Monkeys 3 Old World Monkeys 4 Hominoids apes and humans Female Reproductive Strategies Females carry fetus internally and lactate to nourish infant birth Maternal care is costly in terms of energy and nutrients Male Reproductive Strategies malemale competition Different Types of Social interactions Case w Recipient Selfish Mutualistic Altruistic Spiteful positive fitness negative fitness Kin Selection Hamilton 1964 Assumes that altruism is underwritten by genes we know close relatives share genes through common descent Altruists that selectively aid kin will tend to aid those who carry same gene for altruism mgtc r relatedness b benefit to recipient c cost to altruist Multilevel Selection Wilson 1975 Altruism may evolve in a population when groups with greater frequency of altruists out compete groups with fewer altruists However this can only occur when variation between groups is greater than variation within groups This is unlikely to be the case in most primates Reciprocal Altruism Trivors 1971 Dating techniques 1 Relative dating 2 Radiometric dating General timeline for early primates Miocene 235 mya Hominoid radiation Oligocene 3423 mya Anthropoid radiation Eocene 5434 mya Prosimian radiation Paleocene 6454 mya First possible primates mya million years ago Terms to know Folivores leaf eating Frugivores fruit eating Gummivores eats sap in tree bark Faunivores insect eating Stratigraphy older layers are overlain by more recent layers Radiometric or absolute dating provide date estimates for geological deposits Halflife time for half the radioactive nuclei in any sample to undergo radioactive decay


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