ANTH 270 Final Exam Questions and Answers Graded A+
How long have humnas been around in Deep Time? - Answers 1.5 secs (150 kya)
Big Bang - Answers 8-16 billion yrs
Earliest life (when) - Answers one-celled-bac 3.5 billion
When did dino/asteriod occur? How connected to primates? - Answers 65 mya, lead to primates
First fossil Primates? - Answers 55 mya (Eocence)
Epoch for first hominin fossils? - Answers Pliocene (8-5 mya)
when do Homo spaiens appear? - Answers 200,000
Uniformitarianism - Answers Lyell and Hutton: natural process in past are occurring in present
Paleogeography - Answers movement of plates= continent shape to term-change over time
Pangea - Answers rifting caused diversity
fossil? Are these strictly bones? - Answers mineralized remains of organism from past.
is organic matter a fossil? - Answers no
taphonomy - Answers process of passing from biosphere to the lithosphere
Steps for fossil. - Answers Die
decay
broken up (trampled)
burial (anoxic)
fossilization
exposure discovery
Why is context important in fossilization? - Answers Helps us narrow down or understand more
specifically what fossil is uncovered. (Environmental, culture context)
Incorrect assumptions about fossil record? - Answers 1 absence of 2 fossil=absence
abundance is FR=abundance in communities
3 Animals=found where lived
4 species found together=lived together
, What is true about fossils - Answers 1. most not preserved
2. young and old preserved/
3. only hard part(moslty)
relative Dating - Answers we can tell if something is older or younger, but not
exactly(stratigraphy)
Absolute Age dating - Answers estimate in actually yrs(K/Ar,Ar/Ar,C 14)
How do we conduct Absolute Age dating? List half -life ratios. - Answers radioactive decay of
unstable isotopes. Ratio of half-life. 1:1-1-1:3 -2 ,1:7-3, 1:15-4
Paleomagnetism - Answers based on polar magnetism, based on magnetic orintation of
inorganic material
What is best absolute age dating method for young. orgnaic materials - Answers C14
Older inorgnaic material? - Answers K/Ar
Is hominin evolution linear? - Answers no
What is a hominin? When did we branch off? - Answers members of evolutionary group that
include modern humans and all extinct bipedal relatives. (7-6 mya)
Hominin Genera (6) - Answers Sahelanthropus
Orrorin
Ardipithecus
Australopithecus
Paranthropus
Homo
What makes us human? - Answers culture, tools, language, art, religion, brain, biped.
reproductive biology.
What is mosiac evolution? - Answers no, piecemeal Mosaic Evolution. Not all traits at once
What trait for homins evolves first? - Answers bipeadlism
Where was origin of human originally believed to come from? Why? - Answers Europe and Asian?
Neanderthal fossil in Germ, and Pithecanthropus in Java
what was believed to be major different between humans and primates - Answers larger brain
How long have humnas been around in Deep Time? - Answers 1.5 secs (150 kya)
Big Bang - Answers 8-16 billion yrs
Earliest life (when) - Answers one-celled-bac 3.5 billion
When did dino/asteriod occur? How connected to primates? - Answers 65 mya, lead to primates
First fossil Primates? - Answers 55 mya (Eocence)
Epoch for first hominin fossils? - Answers Pliocene (8-5 mya)
when do Homo spaiens appear? - Answers 200,000
Uniformitarianism - Answers Lyell and Hutton: natural process in past are occurring in present
Paleogeography - Answers movement of plates= continent shape to term-change over time
Pangea - Answers rifting caused diversity
fossil? Are these strictly bones? - Answers mineralized remains of organism from past.
is organic matter a fossil? - Answers no
taphonomy - Answers process of passing from biosphere to the lithosphere
Steps for fossil. - Answers Die
decay
broken up (trampled)
burial (anoxic)
fossilization
exposure discovery
Why is context important in fossilization? - Answers Helps us narrow down or understand more
specifically what fossil is uncovered. (Environmental, culture context)
Incorrect assumptions about fossil record? - Answers 1 absence of 2 fossil=absence
abundance is FR=abundance in communities
3 Animals=found where lived
4 species found together=lived together
, What is true about fossils - Answers 1. most not preserved
2. young and old preserved/
3. only hard part(moslty)
relative Dating - Answers we can tell if something is older or younger, but not
exactly(stratigraphy)
Absolute Age dating - Answers estimate in actually yrs(K/Ar,Ar/Ar,C 14)
How do we conduct Absolute Age dating? List half -life ratios. - Answers radioactive decay of
unstable isotopes. Ratio of half-life. 1:1-1-1:3 -2 ,1:7-3, 1:15-4
Paleomagnetism - Answers based on polar magnetism, based on magnetic orintation of
inorganic material
What is best absolute age dating method for young. orgnaic materials - Answers C14
Older inorgnaic material? - Answers K/Ar
Is hominin evolution linear? - Answers no
What is a hominin? When did we branch off? - Answers members of evolutionary group that
include modern humans and all extinct bipedal relatives. (7-6 mya)
Hominin Genera (6) - Answers Sahelanthropus
Orrorin
Ardipithecus
Australopithecus
Paranthropus
Homo
What makes us human? - Answers culture, tools, language, art, religion, brain, biped.
reproductive biology.
What is mosiac evolution? - Answers no, piecemeal Mosaic Evolution. Not all traits at once
What trait for homins evolves first? - Answers bipeadlism
Where was origin of human originally believed to come from? Why? - Answers Europe and Asian?
Neanderthal fossil in Germ, and Pithecanthropus in Java
what was believed to be major different between humans and primates - Answers larger brain
