Bio Ch10-11
The biggest primate ever, Gigantopithecus, is estimated to have stood
10 to 12 feet tall.
Starting around _____, we find more fossils of ground-dwelling, open-country apes, whose larger back teeth with thicker enamel point to an increased mixed vegetable diet that included harder foods such as nuts.
12 mya
Based on current available evidence it appears that fully modern looking people first appeared about ____ ya.
160,000
About when do undisputed primates appear in the fossil record?
55 mya
What is "robust" about the so-called robust early hominins?
Chewing areas
Flattening of the face with decreased size of teeth and jaws in combination with an enlargement in brain size best describes which of the following genus's?
Homo
Which of the following genera is NOT extinct?
Homo
The species of within the genus Homo that is geographically widespread, with an average brain size of 1,300 ml, that has a reduced postorbital constriction but still retains a smaller brow ridge is called
Homo heidelbergensis.
Which of the following is NOT considered to be a potential adaptive reason for bipedalism?
It takes more metabolic energy to run somewhere than to walk.
The first finds ever of Homo erectus were made in _____ by the Dutch physician Eugene Dubois in 1891.
Java
The making of tools by striking uniform flakes from a prepared core is known as
Levallois technique.
Which of the following is part of the African Replacement model?
Modern looking Homo sapiens spread over the Old World from Africa, replacing archaic populations when they came in contact.
What is the purpose of the sagittal crest?
Muscles attach to it to aid in chewing.
Savanna adapted early hominins are classified in genus
Paranthropus
Which of the following is part of the Multiregional Evolution model?
The physical features we associate with modern humans appeared everywhere but may have been manifested in different ways.
Which of the following skull characteristics is indicative of a modern human face?
a flat face
The sagittal crest is
a ridge of bone, running from front to back along the top of the skull.
Which of the following is associated only with modern Homo sapiens?
art
Orrorin is thought by some to be a hominin because of its
bipedalism.
Homo habilis is considered a member of our genus for which of the following reasons?
its enlarging brain
An important evolutionary shift that marked the origin of the anthropoids included which change?
less leaping and more climbing through the trees with all fours
The ape like trait of the jutting forward of the lower face and jaws is called
prognathism.
Evidence of gene flow between archaic and moderns would
refute the AR model and support the MRE model
The Neandertals' adaptations to cold climates are thought to have included all of the following EXCEPT
tall stature.
The "Taung Baby" looks like a young ape except for a couple of important differences. One of those differences is
the location of the foramen magnum.
A sloping of the sides of the skull toward the top is known as
the sagittal keel.
Competitive exclusion is
when one species competes with others for the resources of a particular area and wins.
