Giraffes live across Africa and generally have the same appearance despite the geographic barriers that separate various populations of giraffes. For a long time, giraffes have been thought to belong to one species, but as scientists tried to save giraffes from extinction, they ran into a problem. A traditional strategy of relocating animals from a healthy population to another area to increase numbers was not working. Which of the following experiments could the scientists perform to determine whether there are multiple giraffe species that have evolved due to geographic barriers according to the biological definition of species? A. Examine the morphology of each of the giraffe populations, looking for differences between the various populations. B. Track the giraffe populations to see if they occupy the same ecological niche within each of the populations. C. Measure the mating success of giraffes when mating two giraffes from different populations and measure the fitness of any offspring. D. Analyze DNA from each of the giraffe populations and determine how similar they are to individuals within their own population and other populations.
Giraffes live across Africa and generally have the same appearance despite the geographic barriers that separate various populations of giraffes. For a long time, giraffes have been thought to belong to one species, but as scientists tried to save giraffes from extinction, they ran into a problem. A traditional strategy of relocating animals from a healthy population to another area to increase numbers was not working. Which of the following experiments could the scientists perform to determine whether there are multiple giraffe species that have evolved due to geographic barriers according to the biological definition of species? A. Examine the morphology of each of the giraffe populations, looking for differences between the various populations. B. Track the giraffe populations to see if they occupy the same ecological niche within each of the populations. C. Measure the mating success of giraffes when mating two giraffes from different populations and measure the fitness of any offspring. D. Analyze DNA from each of the giraffe populations and determine how similar they are to individuals within their own population and other populations.
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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Problem 1LR
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Giraffes live across Africa and generally have the same appearance despite the geographic barriers that separate various populations of giraffes. For a long time, giraffes have been thought to belong to one species, but as scientists tried to save giraffes from extinction, they ran into a problem. A traditional strategy of relocating animals from a healthy population to another area to increase numbers was not working.
Which of the following experiments could the scientists perform to determine whether there are multiple giraffe species that have evolved due to geographic barriers according to the biological definition of species?
A. Examine the morphology of each of the giraffe populations, looking for differences between the various populations.
B. Track the giraffe populations to see if they occupy the same ecological niche within each of the populations.
C. Measure the mating success of giraffes when mating two giraffes from different populations and measure the fitness of any offspring.
D. Analyze DNA from each of the giraffe populations and determine how similar they are to individuals within their own population and other populations.
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