1. All mutations in an individuals DNA will contribute to evolution and speciati
ID: 3508835 • Letter: 1
Question
1. All mutations in an individuals DNA will contribute to evolution and speciation. ( T / F )
2. Which of the following traits does Homo neanderthalensis share with Homo sapiens?
a. Both hominins were equally muscular
b. Speech
c. Chins
d. Cranial capacity and shape
3. Increased brain size (cranial capacity) evolved before bipedalism. ( T / F )
4. Which of the following best explains why human evolution is difficult to study and explain to others?
a. Evolution is so controversial that many chose not to address it.
b. Anthropologists do not agree about how to talk about evolutionary processes.
c. Evolution occurs across a scale of biological processes, and ancient folssils are often incomplete.
d. There is no international consensus on what the main processes of evolution are.
5. Please provide one human-like (derived) and one ape-like (ancestral) characteristic of Austraopithecus afarensis (Lucy). What do these traits tell us about human evolution?
6. Which of the following NOT a major trend in hominin evolution?
a. robust skeletons
b increase in brain size
c. reliance on culture (language and tools)
d. bipedalism
e. distinctive dention
7. Provide an example of ta behaviroal trait. What hominins is that trait associated with? What does this trait tell us about how the hominin lived?
Explanation / Answer
1.False. Only a small percentage of individual mutations will contribute to evolution as most of the mutations are repaired by the body before they produce effects
2.c. speech
neanderthalis were shorter and more muscular , had receding chins , and cranial capacity larger than homo sapeans
3.False. bipedelism seems to be evolved before increased brain size
4. c
5. prominent ape like feature is the facial features and the skull capacity, whereas most important human like feature is bipedalism and walking upright . these traits indicate that Lucy could have been a link in human evolution.
6.a. robust skeletons. even thought homo sapeans have an erect skeleton, it is not as robust as our ancestors.
7. Burial is a behavioral trait. it is supposed to have originated during the upper paleolithic age coinciding with the homo neanderthalis. These behavioral traits indicate the adaptation of our ancestors to the changes and paving way for selection by survival. these traits augmented abstract thinking and adaptation.
they are found to have vocal communication similar to humans
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