GA Biology EOC

Which is necessary for speciation to occur?

• adaptation

• mass extinction

• isolation

• acquired traits

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The evolution of a new species from an existing species is ____.

• natural selection

• isolation

• speciation

• genetic variation

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Organisms with the most beneficial traits will survive.  This is commonly known as ___.

• theory of evolution

• variations
  

• survival of the fittest

• ecosystems
  

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Most organisms have more offspring than will survive 

• True

• False

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A new river forms and splits two populations, causing ______________ speciation

• Sympatric

• Allopatric

• Extreme

• Convergent

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A speciation in which new species evolve from a single ancestral species while inhabiting the SAME geographic region.

• Sympatric speciation

• Allopatric speciation

• Complex speciation

• Divergent speciation

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Which of the following is required for a population to diverge into two separate species?

• The two populations must have evolved different physical appearances.

• The two populations must have mutated at least 10 times.

• The two populations must have become reproductively isolated.

• The two populations must have evolved analogous structures.

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Which best describes punctuated equilibrium?

• Speciation occurs due to natural selection

• Speciation occurs due to isolation

• Speciation occurs slowly in geologic time, followed by long periods with very fast evolutionary change.

• Speciation occurs suddenly and rapidly in geologic time, followed by long periods with little evolutionary change.

A bumble bee has just enough weight to open up the snapdragon flower and get the nectar/pollen inside.  Other insects cannot do this. This adaption is an example of........

• convergent evolution

• co-evolution

• divergent evolution

• speciation

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The emergence of new rivers or streams is a type of ____________ isolation.

• Temporal

• Mechanical

• Behavioral

• Geographic