In: Biology
QUESTION 1
How are members of the genus Homo
different physically
from the Australopithecus?
flattening of the face (the mouth doesn’t protrude forward like the australopithecines) |
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shorter arms |
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smaller-sized teeth and jaws |
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all of the above |
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none of the above (Homo and Australopithecus are basically the same in anatomy) |
1 points
QUESTION 2
The
brain of Homo is:
smaller than the brain of Australopithecus |
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almost identical in size to the brain of Australopithecus |
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larger than the chimpanzee-sized brain of Australopithecus |
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adapted primarily for life in trees (arboreal adaptation)
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1 points
QUESTION 3
The skeleton of Homo erectus:
is more apelike (more similar to a chimp or gorilla) than human |
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is adapted for walking differently than modern man (more like gorilla knuckle-walking) |
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is adapted for walking almost identically to the way modern humans walk |
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is radically different from modern humans |
1 points
QUESTION 4
The earliest (that is, the oldest) stone tools are referred to as:
Oldowan |
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Acheulean |
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Mousterian |
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Hominid |
1 points
QUESTION 5
The earliest stone tools are associated with (were made by):
Australopithecus afarensis |
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Australopithecus africanus |
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Homo habilis |
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Homo erectus |
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Neandertal |
Answer 1. The correct option is D. All of the above. The differences between australopithecines and early humans can be easily diffrentiated in the head. Humans developed significantly larger brains and relatively smaller faces which are less protuding with progressively smaller teeth and jaws. Also the arm length was considerably shorter.
Answer 2. The correct option is C. larger than the chimpanzee-sized brain of Australopithecus. As discussed in the answer 1, humans developed larger brain size.
Answer 3. The correct option is C. is adapted for walking almost identically to the way modern humans walk.
As the name erectus suggest, they walked straight and upright like modern humans do, and not like apes. Apes do knuckle walking while homo erectus was bipedal.
Answer 4. The correct option is A. Oldowan. The name comes from what has been termed the Oldowan Industry, named after the type of sites found in Olduvai Gorge, Tanzania, where these oldest known stone tools were discovered in large quantities.
Answer 5. The correct option is A. Australopithecus
afarensis.
The oldest known stone tool was found to be dated back to 3.3
million years ago. It is the same time Australopithecus afarensis
were present.