Montour Q3-41 Corrected - Ryan Montour PSY 110 Quiz 1...

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Ryan Montour PSY 110- Quiz 1 Question 1: A) Macroevolution being defined in relative terms as: “The large-scale patterns, trends, and rates of change among groups of species”. In microevolution, the process can be summarized as three key points: Genes mutate (changes in a gene), individuals are selected, and populations evolve. B) In Homo sapiens, parallel evolution of increase brain size and culture was also accompanied by changes in the skull bones and an increased capacity for language. New behavior promoted the brain case to enlarge and brain regions involved in information processing to expand. In turn, the expanded brain regions stimulated more new behavior. The five evolutionary developments that led to the evolution of primates and then Homo sapiens are: 1. Bipedal locomotion 2. Modifications of the hands and improved dexterity 3. Emergence of stereoscopic vision and improved daylight vision 4. Changes in dentition 5. Increase in brain size -2 points Question 2: A) The prokaryotes are a group of organisms that lack a cell nucleus or any other membrane-bound organelles. They differ from the eukaryotes, which have a cell nucleus. Prokaryotes also differ from eukaryotes in that they contain only a single
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