BIO 1M03 Test 2 Questions And Answers

BIO 1M03 Test 2 Questions And Answers Angiosperm - ANS -flowering plant -has seeds with casing -has endosperm in seeds -fruit -most diverse Radiometric methods of dating - ANS -K/Ar (lava, 500K+ years) -C14 (conversion to N14, 40K yrs) -Thermoluminescence (burning) -Electron spin (teeth) -Uranium Lead (mineral deposits) Relative methods of dating - ANS -magnetic reversals -extinct and distinct species Primate - ANS -climbing/locomotion adaptations -big brain -opposable thumbs and prehensile tails -nails Prosimians - ANS -strepsirrhines -small brain -big eyes -nocturnal Tarsiers - ANS -big eyes -good hearing NWMs - ANS -plattyrhines -prehensile tails -no opposable thumbs -monogamous OWMs/apes - ANS -catarrhines -opposable thumbs -big brains -diurnal -non monogamous Middle Eocene - ANS 54-34mya -primates dispersed across the Atlantic ocean Teeth - ANS -reflect dietary specialization -frugivore: small molars, large incisors -insectivore: sharp incisors -folivore: thick enamel Apes - ANS -Hominoids -gibbons, orangutans, gorillas, chimps, humans -some OWM that sit on branches have ischial callosities -long arms -short legs Flow of primates - ANS Africa-->SE Asia-->Africa Origin of violence - ANS -Gibbons: monogamous -Orangutans: solitary, bimaturation, forced copulation -Gorillas: infanticide, harems -Chimps: raids, male dominated -Bonobos: lots of sex, female dominated Theories of bipedalism - ANS -keeps you cooler -hands free -increased dependence of children Late Miocene/Pleiocene - ANS -global cooling