Bio A 201 Final UW Questions With Complete Solutions
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Bio A 201
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Bio A 201
Paleoanthropology correct answer: - The Study of immediate ancestors of humans (hominins)
- Relies on fossils
- Geographically specific:
1) East and South Africa
2) East Asia
3) Middle East
Taphonomy correct answer: - Study of decomposition
- Process may be arrested by
1) Dry
2) Cold
...
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Bio A 201 Final UW Questions With
Complete Solutions
Paleoanthropology correct answer: - The Study of immediate ancestors of humans (hominins)
- Relies on fossils
- Geographically specific:
1) East and South Africa
2) East Asia
3) Middle East
Taphonomy correct answer: - Study of decomposition
- Process may be arrested by
1) Dry
2) Cold
3) Wet (anaerobic environments)
Fossilization correct answer: - Rare process
- Conditions must be right
Types of Fossils:
- Sedimentary Rock
- Volcanic Activity
Law of superposition correct answer: The oldest strata is the deepest, youngest strata is more shallow; Niels Stensen/Nicolaus
Steno
Index Fossils correct answer: - Certain fossils used to date strata
(Trilobytes) - Changes in fossil organisms can reflect changes in paleoenvironments
- Useful in paleontology and economic geology
Relative Dating Techniques correct answer: 1) Flourine Dating
- Flourine found in soil
- Leaches into bones
- Amount of flourine gives a relative age
- Amount of flourine depends on the soil
2) Cultural Dating
- Common in Archaeological contexts
- Analyze the change in material culture over time
Absolute Dating Techniques correct answer: 1) Dendrochronology
- Based on number of tree rings
- Wide rings = wet years, Narrow rings = dry years
2) RadioCarbon Dating
- Decomposition rates of C-14
3) Chemical Dating Tecniques
- Rely of half-lives of radioactive elements
- Potassium-argon (K-Ar) dating
- Uranium series (fission track) dating
Archaeological Recovery correct answer: - Used in paleo-
anthropological context
- Mapping of fossil rich areas
- Recording of strata/geology Bipedalism correct answer: 1) Facultative bipedalism: occuring optionally, with regards to circumstances such as nature
- Some primates
2) Habitual bipedalism
- Birds
- Macropods (Kangaroos)
- Dinosaurs
- Homo sapiens
Hypothesis of Bipedalism: Hunting Hyposthesis correct answer: - First proposed by Charles Darwin
- Raymond Dart: the Taung child, Au. africanus
- Human ancestors became efficient hunters
- Osteodontokeratic technology: hypothesis that detailed the predatory habits of Australopithecines
Hypothesis of Bipedalism: Seed Eating Hypothesis correct answer: - Clifford Jolly
- Efficient for gathering seeds
- Can see predators more easily
Hypothesis of Bipedalism: Thermoregualtion Hypothesis correct
answer: - Dean Falk
- Radiator Hypothesis: The placement of cranial blood vessels were key in hominin brain evolution
Hypothesis of Bipedalism: Male Provisioning Hypothesis correct answer: - Owen Lovejoy
- Monogamous pair bonding
- Males assisted with Child-Rearing
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