Chapter 5 Online Study Guide
10 Questions
| Attempts: 217
Online study guide over Chapter 5. Read the chapter first! Work by yourself, do not give or recieve answers! You have 45 minutes to answer 10 questions. Two questions are short answer that if left blank will give you a zero for the study guide.
Questions and Answers
- 1.What temperature does water boil at?
- A.
100 F
- B.
200 F
- C.
165 F
- D.
212 F
- 2.Approximately how old is the Earth?
- A.
12,000 years old
- B.
1 million years old
- C.
2.7 billion years old
- D.
4.7 billion years old
- 3.Look at the figure on page 105. How much time before midnight did our species evolve?
- A.
5 minutes before midnight
- B.
10 minutes
- C.
6 hours
- D.
2 seconds
- 4.Read the spotlight on page 106. Write a short synopsis, explaining how life evolved on planet earth. Be sure to include when cyanobacteria appeared (and their significance), when the first eukaryotic cells emerged and how our ozone layer was created. This should be at least 2 paragraphs. If you don't complete this question you will recieve a zero for the study guide.
- 5.Which organism is credited with creating an oxygenated atmosphere?
- A.
Paramecium
- B.
Apomixis
- C.
Escheria
- D.
Cyanobacteria
- 6.If you flippeda coin 10 times and 7 of those it landed on heads you would think nothingof it. If you flipped a coin 1000 times and 700 times it landed on heads you would think something is wrong with the coin. Small populations may have a change in genetic composition simply by chance. What is the name of this phenomenon?
- A.
Mutation
- B.
Natural selection
- C.
Gene flow
- D.
Genetic drift
- 7.The peppered moth example is the most commonly cited exampleof evolution by natural selection.In the spotlight on page 108 is another example of evolution - our artificial selection to create dogs. Briefly describe the example of the peppered moth below. If you do not answer this question you will recieve a zero for the study guide. This should be a full paragraph.
- 8.There are three types of natural selection. Which type tends toeliminate individuals on both ends of the genetic spectrum and favor individuals with an average genetic makeup?
- A.
Directional natural selection
- B.
Stabilizing natural selection
- C.
Diversifying natural selection
- D.
Disruptive natural selection
- 9.A species' ____________________ niche is the full potential range of physical, chemical and biological conditions and resources it could theoretically use if there were no direct competition from other species.
- A.
Fundamental
- B.
Realized
- C.
Actual
- 10.The period following a mass extinction in which numerous new species have evolved over sevarl million years to fill new or vacated ecological rolesor niches in changed environments.
- A.
Background extinction
- B.
Allopatric speciation
- C.
Sympatric speciation
- D.
Adaptive radiation
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