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Bio 121: Final Exam Review Questions And Correct Answers.
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evolution - Answer change overtime biological evolution - Answer consists of genetic change in populations of organisms across generations the two naturalists from England who established the idea of natural selection - Answer 1. Alfred Russell Wallace 2.Charles Darwin where Alfr...

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  • October 17, 2024
  • 11
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • biological evolution

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  • Bio 121
  • Bio 121

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Bio 121: Final Exam Review Questions
And Correct Answers.
evolution - Answer change overtime



biological evolution - Answer consists of genetic change in populations of organisms across generations



the two naturalists from England who established the idea of natural selection - Answer 1. Alfred
Russell Wallace

2.Charles Darwin



where Alfred studied natural selection - Answer Archipelago



where Charles Darwin studied natural selection - Answer on his voyage of HMS Beagle



HMS Beagle - Answer Charles Darwins book published that explained his belief of natural selection



Natural Selection - Answer process by which inherited characteristics enhance survival reproduction



3 premises of natural selection - Answer 1. organisms face a constant struggle to survive and reproduce

2. organisms tend to produce more offspring than can survive

3. individuals of a species vary in their characteristics



adaptive traits - Answer genes are passed to offspring and those of better adapted parents will succeed
because they will better adapt through time



adaption - Answer trait that promotes success



artificial selection - Answer selection conducted under human direction

, examples of artificial selection - Answer 1.dog breeding

2.plant breeding (broccoli, cauliflower, brussel sprouts)



speciation - Answer process in which new species are generated



allopatric speciation - Answer species formation due to physical separation of populations over
geographic distance



how allopatric speciation works - Answer other DNA combines with other species and mutations begin
to form



Phylogenetic Trees - Answer depict relationships among species, major groups of species, populations,
or genes



Extinction - Answer the disappearance of a species from earth



why extinction is a natural process - Answer when conditions naturally change and a species does not
have enough time to adapt and work with the change



example of extinction as a natural process - Answer rise&fall of sea level, arrival of new species, severe
weather events



mass extinction events - Answer massive disappearance of species at once



what mass extinction our world is in currently - Answer 6th mass extinction event due to human
impact



ecology - Answer study of interactions among organisms and between organisms and their
environment

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