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What is natural selection?

Question

What is natural selection?

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Solution

Natural selection is a process in nature that results in the most fit organisms producing offspring. This process leads to the evolution of species over time. Here are the steps to understand it:

  1. Variation: Within a species, there can be a variety of physical traits. These traits can be anything from size, color, or strength. These variations are often due to genetic differences.

  2. Overproduction: Most species produce more offspring than can survive. This leads to a struggle for resources like food and space.

  3. Adaptation: Some variations make an individual more suited to its environment. For example, a rabbit in a snowy environment may survive longer if it has white fur that provides camouflage. This is known as an adaptation.

  4. Survival of the Fittest: Individuals with beneficial traits or 'adaptations' are more likely to survive and reproduce. This means they pass on these traits to their offspring.

  5. Evolution Over Time: As beneficial traits become more common in a population, species evolve. Over many generations, a species may change so much that it becomes a new species.

This process of natural selection can lead to the diversity of life we see on Earth today.

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Similar Questions

Natural selection occurs whenMultiple Choicewhen a small number of individuals of a population break away and form a new population.a factor in the environment alters the genetic information in DNA of all members of a species.only when nonrandom mating occurs.a new genetic variation occurs that allows individuals to have a reproductive and survival advantage.

How does natural selection lead to evolution

MULTIPLE CHOICEWhich of the following best describes natural selection?A the process by which organisms adapt to their environment through mutationsB the mechanism of beneficial traits in a population being passed to offspringC the deliberate selection of desirable traits in domesticated animals by humansD the random change in common traits within a population over time

Natural selection is the gradual evolutionary change as a result of

Darwin noted that natural selection occurs becauseMultiple choice question.the sick and weak individuals in a population pass on their traits at the same rate as the healthy.an individual can adapt their behavior or morphology in their lifetime and pass the adaptation on to their offspring.resources are so abundant in a population that competition is not a part of natural systems.adaptive traits that are heritable can pass to offspring and increase their survival and reproduction.

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