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2021-05-14

What is an example of artificial selection?

What is an example of artificial selection?

Dog breeding is another prime example of artificial selection. For example, broccoli, cauliflower, and cabbage were all derived from the wild mustard plant through selective breeding. Artificial selection appeals to humans since it is faster than natural selection and allows humans to mold organisms to their needs.

How would you describe the process of artificial selection?

Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.

Which best describes theory of evolution?

The theory of evolution states that all life is related and that organisms have become more complex over time. It is based on the idea that all life is related. It states that organisms have become less complex over time.

How did the idea of evolution begin?

Evolutionary concepts first appeared in early Greek writings, for example, in the work of Anaximander and Empedocles. Anaximander proposed that animals could be transformed from one kind to another, and Empedocles speculated that they could be made up of various combinations of pre-existing parts.

What is an example of biogeographic evidence of evolution?

Island Biogeography The biogeography of islands yields some of the best evidence for evolution. Consider the birds called finches that Darwin studied on the Gal√°pagos Islands (see Figure below). All of the finches probably descended from one bird that arrived on the islands from South America.

What is the evidence of embryology?

Embryology, the study of the development of the anatomy of an organism to its adult form, provides evidence for evolution as embryo formation in widely-divergent groups of organisms tends to be conserved.

What does fitness mean in natural selection?

Fitness is a measure of reproductive success (how many offspring an organism leaves in the next generation, relative to others in the group). Natural selection can act on traits determined by alternative alleles of a single gene, or on polygenic traits (traits determined by many genes).

How are embryos used as evidence for evolution?

Embryology is important to understanding a species’ evolution, since some homologous structures can be seen only in embryo development. For example, all vertebrate embryos, from humans to chickens to fish, have a tail during early development, even if that tail does not appear in the fully developed organism.