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Biological Anthropology Lab Practical 1 Exam Questions and Answers
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Biological Anthropology Lab Practical 1 Exam Questions and Answers
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Biological Anthropology Lab Practical 1Exam Questions and Answers
Synapomorphies - Answers -shared derived traits
Cladistics - Answers -method of reconstructing relationships between taxa based on
shared derived traits
Gradistic - Answers -grouping primates based on their overall similarity in appearance..
doesn't make ties of evolution
Primate traits - Answers -post-orbital bar
opposable pollex (thumb)
presence of a clavicle
forward-facing orbits
Do only primates have post-orbital bars? - Answers -No... some non-primates have this,
but if it does not have this then its NOT a primate
Why is a dog not a primate? - Answers -Lacks: post-orbital bar
Has: claws
Why is a Colugo (flying lemur) not a primate? - Answers -Lacks: post-orbital bar
Has: claws
Why is a tree shrew not a primate? - Answers -Side facing eye orbits
non-primate dental formula
Primate have __ incisors and __ premolars - Answers -2 incisors, 2-3 premolars
True or False: If a mystery animal had a dental formula of 3.1.3.3. they would be a
primate. - Answers -False... Primates have 2 incisors so this would not be a primate.
New World Monkey dental formula - Answers -2.1.3.3.
Human dental formula - Answers -2.1.2.3.
Human cusps morphology - Answers -Y-5 pattern cusps
Strepsirrhini.. primitive or derived? - Answers -primitive
, Haplorhini.. primitive or derived? - Answers -derived
Strepsirrhine & Haplorhines:
Rhinarium (absent or present) - Answers -Strepsirrhine: present
Haplorhines: absent
Strepsirrhine & Haplorhines:
mandibular symphysis (fused or unfused) - Answers -Strepsirrhine:unfused
Haplorhines:fused
Strepsirrhine & Haplorhines:
eye orientation (divergent or convergent) - Answers -Strepsirrhine: divergent
Haplorhines: convergent
Strepsirrhine & Haplorhines:
orbit morphology (post-orbital plate vs. post orbital bar) - Answers -Strepsirrhine: post-
orbital bar
Haplorhines: post-orbital plate
Strepsirrhine & Haplorhines:
muzzle.. nose/mouth/jaw (orthognathic vs prognathic) - Answers -Strepsirrhine:
prognathic
Haplorhines: orthognathic
Strepsirrhine & Haplorhines:
tooth comb (present or absent) - Answers -Strepsirrhine: present (2 incisors and 1
canine)
Haplorhines: absent
True or False?
Only Haplorrhines have a toothcomb - Answers -False.. only strepsirrhines have this
Advantage of convergent eyes? - Answers -More forwards eyes = better 3D vision
What is a post orbital bar? - Answers -bony ring around eye
What is a post orbital plate? - Answers -closed, no opening behind eye
Tarsiers are in the ____ grade but are in the ____ clade - Answers -Grade: Prosimian
Clade: Haplorhine
Tarsier prosimian feature... - Answers -unfused mandibular symphysis...
symplesiomorphy
Tarsier haplorhine feature... - Answers -post-orbital plate... synapomorphie
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