What is natural selection?
Evidence of Evolution

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Biology
•
9th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring. It is a key mechanism of evolution.
2.
FLASHCARD QUESTION
Front
What are 'SuperBugs'?
Back
SuperBugs are bacteria that have developed resistance to antibiotics, making them difficult to treat.
3.
FLASHCARD QUESTION
Front
Who proposed the theory of natural selection?
Back
Charles Darwin proposed the theory of natural selection after his observations during his visit to the Galapagos Islands.
4.
FLASHCARD QUESTION
Front
What is genetic drift?
Back
Genetic drift is a mechanism of evolution that refers to random changes in the frequency of alleles in a population.
5.
FLASHCARD QUESTION
Front
What is non-random mating?
Back
Non-random mating occurs when individuals in a population choose mates based on specific traits, rather than randomly.
6.
FLASHCARD QUESTION
Front
Why do peppered moths change color?
Back
Peppered moths change color to blend in with their environment, which helps them avoid predation.
7.
FLASHCARD QUESTION
Front
What is gene flow?
Back
Gene flow is the transfer of genetic material between populations, which can increase genetic diversity.
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