3 Questions
Which of the following best describes natural selection?
A process by which individuals with favorable traits are more likely to survive and reproduce
Which of the following is NOT a requirement for natural selection to occur?
Equal survival and reproduction rates for all individuals
Which of the following is an example of natural selection?
A population of insects developing resistance to a pesticide
Study Notes
Natural Selection
- Natural selection is the process by which populations of living organisms adapt and evolve over time in response to environmental pressures.
- It is a key mechanism of evolution that leads to the survival and reproduction of individuals with advantageous traits.
Requirements for Natural Selection
- There are three main requirements for natural selection to occur:
- Variation in a population (genetic variation)
- Heritability of the variation
- Differential reproduction rates based on the variation
Examples of Natural Selection
- Antibiotic resistance in bacteria is an example of natural selection, where bacteria that are resistant to antibiotics are more likely to survive and reproduce.
- The development of pesticide-resistant pests is another example, where pests that are resistant to pesticides are more likely to survive and reproduce.
Test your knowledge on natural selection with this quiz! Learn what natural selection is, the requirements for it to occur, and explore examples of this important evolutionary process.
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