How Is Artificial Selection Dependent On Variation In Nature

Question: How is artificial selection dependent on variation in nature?

Answer: In artificial selection, nature provided the variation, and humans selected those variations that they found useful.

Question: The theory of evolution by natural selection explains, in scientific term, how living things evolve over time. What is being selected in this process?

Answer: Over time, natural selection results in changes in the inherited characteristics of a population. These changes increase a species’ fitness in its environment.

Question: What types of evidence did Darwin use to support his theory of change over time?

Answer: Darwin argues that living things have been evolving on Earth for millions of years. Evidence for this process could be found in the fossil record, the geological distribution of living species, homologous structures of living organisms, and similarities in early development, or embryology.

Question: Use scientific evidence to evaluate Darwin’s theory of evolution by natural selection.

Answer: Every organism is different in it’s traits such as size and behaviour. There was a gradual change in each species. Fossils were different from the living animals. However, these fossils had many similarities to modern forms of life.