ECOLOGY

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Explain what the saying “survival of the fittest” means. In evolution, what does “fitness” mean and how is it measured?

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31 thoughts on “Explain what the saying “survival of the fittest” means. In evolution, what does “fitness” mean and how is it measured?

  1. Survival if the fittest means the most able people that have the best chance of survival will live. In evolution, fittest means animals with the best characteristics will have the best chance to live and reproduce.

  2. The survival of the fittest means that only the species that is best adapted will survive. Fittest means the ones best suited to survive

  3. Survival of the fittest means only the strong will survive and the weak will die. Fitness means your ability to survive, in terms of getting food and fighting or running from predators.

  4. Survival of the fittest means that only the best suited for environment will survive in the wild. Fitness is how fitted a species is to its environment. It is measured by physical characteristics and adaptations a certain species/ creature has.

  5. Natural selection is a creative process that generates or shapes adaptations over evolutionary time. For a trait to be shaped by natural selection it must be genetic and heritable. For natural selection to affect a trait there must be genetic variation in the population in this trait

  6. Natural Selection is survival of the fittest” where “the fittest” means “more genetic fitness” is a false tautology. It is a tautology because it says “fitness equals fitness” and it is a false tautology because natural selection does not usually mean more fit.

  7. It is a natural process resulting in the evolution of organisms best adapted to the environment. Fitness implies to strength and health in an animal.

  8. Survival of the fittest means that the strongest will survive, and the weak will fail. Fitness is the animals ability to survive in their habitat and reproduce as well.

  9. “Survival of the fittest” means that those organisms better adapted to their environment and certain circumstances will survive over those who aren’t. “Fittest” in an evolution standpoint means the most evolved out of all of that species who will reproduce to further the evolution and is measured by survival and variations

  10. Survival of the fittest mean that the characteristics of the fittest animal will be passed on and become more common in the later generations. Fitness means an organisms ability to survive and produce offspring, and is measured by absolute and relative fitness.

    • what does absolute and relative fitness mean…how exactly do we measure a population’s fitness?

      • Absolute fitness is the total number of offspring that an organism produces in its lifetime. Relative fitness is the average number of offspring that an organism produces in its lifetime. We measure fitness by its chance of living to a certain age or its number of offspring during a certain time interval.

  11. “Survival of the fittest” is a natural process resulting in the evolution of organisms best adapted to the environment. Fitness is the ability for an animal to survive and it is measured by its adaptations and characteristics.

  12. Survival of the fittest mean that the characteristics of the fittest animal will be passed on and become more common. like in later generations in their cycle. Fitness means an organisms ability to survive and produce offspring, and is measured by absolute and relative fitness.

  13. This means that the best organism in the environment will outlast the rest because it is the fittest. It is a natural process of evolution.

  14. survival of the fittest means the strongest of a species survive and the weak die off. Fitness just means how well a animal is able to survive and how physically healthy it is.

  15. Survival of the fittest means that the strong will survive and the weak will die ensuring that the strongest possible genes get passed along. I think the fittest means the most adapted to survive and it’s measured by how well it’s children live and how long and well they survive.

  16. Survival of the fittest means that the species best adapted to the environment will survive. Fittest means the the most suited for survival.

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