
SB4 Flashcards
Flashcard
•
Specialty
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9th - 12th Grade
•
Practice Problem
•
Hard
Margaret Byrd
FREE Resource
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39 questions
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1.
FLASHCARD QUESTION
Front
What is evolution?
Back
The gradual change in the inherited traits of a population over time
2.
FLASHCARD QUESTION
Front
Describe Darwin's theory of evolution
Back
All species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce.
3.
FLASHCARD QUESTION
Front
Why does evolution occur?
Back
Due to natural Selection
4.
FLASHCARD QUESTION
Front
What is natural selection?
Back
The idea that the fittest survive and pass along their traits to their offspring.
5.
FLASHCARD QUESTION
Front
Describe how antibiotic resistance in bacteria can be used an example to illustrate the process of evolution
Back
Genetic Variation exists due to spontaneous mutations; antibiotics act as selection pressure; mutations give bacteria antibiotic resistance; when antibiotic is administered the bacteria is killed but the resistant ones survive; these then reproduce, creating more resistant bacteriums; so the frequency of antibacterial resistance increases.
6.
FLASHCARD QUESTION
Front
Why is development for antibiotic resistance in bacteria a good study of evolution?
Back
Bacteria reproduce very rapidly, allowing first hand observation of evolution.
7.
FLASHCARD QUESTION
Front
How can observations of fossils provide evidence of evolution?
Back
Older fossils contain simpler organisms, newer fossils contain more complex organisms. The comparison shows that simple organisms evolved into more complex life forms.
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