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Speciation
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Questions (124)
Ms. Vetter studies two species of frogs. One species reproduces from January to March. The other species reproduces from March
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Question 22
Speciation, which leads to diversity among species through natural selection, occurs when a organisms develop
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Which of these is the clearest sign that two populations are different species?(1 point)
Responses If two populations live very
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aaagtuygy
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Speciation is best described as the
a differences among species living within a single community. b decline of a species due to
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The diagram shows a population of fish species that live in a river ecosystem.
A small part of the population is geographically
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A species of dark-green trees is spread over a very large terrain. Over a long period of time, mountains form in this area and
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The diagram shows the speciation of finches from different islands in the Galápagos Islands, as observed by Charles Darwin.
Whic
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kaite marie
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Squirrels and other small mammals near Arizona's Grand Canyon are shown to have experienced speciation. Two populations of
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kaite marie
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Scientists observe a population of squirrels over a long period of time.
The scientists note that after the populations are able
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kaite marie
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Originally only one squirrel species inhabited the Ponderosa pine forest around the rim of the Grand Canyon, the Abert
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Speciation is best described as the
a similarities among similar species that are living in different parts of the world. b
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Speciation is best described as the
a differences among species living within a single community. b decline of a species due to
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Which of these is one of the main ways that a new species forms?
Photos: The top 10 amazing new species discovered in 2012 | 89.3
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kjhgtfrdesdcvgb
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When two closely-related species develop different mating dances or mating calls, this is an example of _______________.
a
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kjhgtfrdesdcvgb
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Speciation among the finch populations of the Galapagos Islands occurred primarily as a result of the founder effect,
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kjhgtfrdesdcvgb
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Which of these is one of the main ways that a new species forms?
Photos: The top 10 amazing new species discovered in 2012 | 89.3
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kjhgtfrdesdcvgb
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If a species reaches it's "maximum tolerance limit", it may ...(1 point)
Responses increase in population. increase in
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Select ALL the correct answers.
New species of organisms may emerge if an individual organism makes sudden dietary changes.
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After the last major ice age, sea levels around the world rose. As they did, the rising waters divided what was once a single
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very similar organism that can interbreed and produce fertile offspring
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Which of these is one of the main ways that a new species forms?
Photos: The top 10 amazing new species discovered in 2012 | 89.3
1 answer
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Suppose that a species of fish has split into two populations in a lake: one on the eastern side and one on the western side.
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Some species undergo polyploidy, which is a multiplication of their chromosomes. That is, they contain full chromosomes from
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Suppose that a type of tree tends to speciate over 10 million years and a species of fly tends to speciate over 1 million years.
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Parent Categories (10)
Biological Sciences
Biology
Evolution
Evolution and Adaptation
Evolutionary Biology
Evolutionary Processes
Genetics
Islands
Reproduction
Taxonomy