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4th Q CQE Review Bio-Ch 18 And 20
Test Description: Just the big ideas :)
Instructions: Answer all questions to get your test result.
1) In this type of selection, one end of the bell curve has a higher level of fitness than the middle or other end
A
tacos
B
disruptive
C
Directional
D
stabilizing
2) In this type of selection, the middle has the highest level of fitness
A
tacos
B
stabilizing
C
directional
D
disruptive
3) in this type of selection, the middle is the least fit. The 2 ends have a higher level of fitness
A
directional
B
tacos
C
disruptive
D
stabilizing
4) the average acorn circumference is 3cm. There are very few acorns that are 2cm or 4cm. This is which type of selection?
A
disruptive
B
stabilizing
C
directional
D
tacos
5) In a population of birds, there are small, medium, and large beaks. A drought occured, killing off all the food sources for medium and large beaks. What type of selection will occur?
A
disruptive
B
tacos
C
directional
D
stabilizing
6) In a population of birds, there are small, medium, and large beaks. A drought occured, killing off all the food sources for only medium sized beaks. What type of selection will occur?
A
stabilizing
B
disruptive
C
directional
D
tacos
7) A factor that is necessary for the formation of new species is
A
reproductive isolation
B
reproduction at different times
C
different mating behaviors
D
a geographic barrier
8) 2 populations of birds have different mating songs. This is an example of
A
temporal isolation
B
tacos
C
behavioral isolation
D
geographic isolation
9) when 2 populations reproduce at different times of the year, this is called
A
temporal isolation
B
tacos
C
geographic isolation
D
behavioral isolation
10) when 2 populations have different mating or courtship behaviors, this is called
A
temporal isolation
B
behavioral isolation
C
geographical isolation
D
tacos
11) one population of beetles mates during the day. Another prefers to mate at night. This is an example of
A
behavioral isolation
B
geographic isolation
C
tacos
D
temporal isolation
12) when 2 populations are separated by geographic barriers, this is called
A
geographic isolation
B
tacos
C
temporal isolation
D
behavioral isolation
13) 2 populations of chipmunks can't mate due to a large mountain range keeping them apart. This is called
A
behavioral isolation
B
temporal isolation
C
geographic isolation
D
tacos
14) Mass extinction would most likely result from which of the following events?
A
a wildfire burns a national park
B
tacos
C
a massive earthquake strikes North America
D
global temperatures drop several degrees after several massive volcanic eruptions
*select an answer for all questions
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