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Lesson 13 unit 3 Natural selection
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Natural selection is the process by which certain traits or characteristics become more common in a population over time because they provide a survival or reproductive advantage. This process is a key mechanism of evolution, as it drives the adaptation of organisms to their environment.
Charles Darwin first proposed the theory of natural selection in his book "On the Origin of Species" in 1859. He observed that organisms within a population vary in their traits, and those with traits that are better suited to their environment are more likely to survive and reproduce, passing on those advantageous traits to their offspring.
There are four main components of natural selection:
1. Variation: Individuals within a population have different traits or characteristics.
2. Inheritance: Traits can be passed down from parents to offspring.
3. Differential survival: Individuals with traits that are better suited to their environment are more likely to survive and reproduce.
4. Differential reproduction: Individuals with advantageous traits are more likely to pass on those traits to future generations.
Over time, natural selection can lead to the accumulation of beneficial traits in a population, resulting in the adaptation of that population to its environment. This process is responsible for the diversity of life on Earth and the incredible adaptations that organisms have developed to survive and thrive in their habitats.
Charles Darwin first proposed the theory of natural selection in his book "On the Origin of Species" in 1859. He observed that organisms within a population vary in their traits, and those with traits that are better suited to their environment are more likely to survive and reproduce, passing on those advantageous traits to their offspring.
There are four main components of natural selection:
1. Variation: Individuals within a population have different traits or characteristics.
2. Inheritance: Traits can be passed down from parents to offspring.
3. Differential survival: Individuals with traits that are better suited to their environment are more likely to survive and reproduce.
4. Differential reproduction: Individuals with advantageous traits are more likely to pass on those traits to future generations.
Over time, natural selection can lead to the accumulation of beneficial traits in a population, resulting in the adaptation of that population to its environment. This process is responsible for the diversity of life on Earth and the incredible adaptations that organisms have developed to survive and thrive in their habitats.