... means that a trait acquired during the lifetime of an organism, including improvements of existing traits, can be transmitted to its offspring. Later in scientific history, it was Charles Darwin who came up with the most convincing theories of adaptation and development. In 1859, he published The Origin of Species, introducing the theory that species evolve from others, including man's development from apes. Darwin proposed that evolution occurred as the result ... of natural selection. Natural selection is the process by which environmental effects lead to ... ...

• Word Count: 2536
• Approx Pages: 10
• Grade Level: Undergraduate

... these changes do not affect the genetic material. Change happens in genetic material only when games are involved. In 1858, Charles Darwin introduced a theory of evolution that is accepted by almost all scientists today. His theory states that all species evolved from a few common ancestors by natural selection. Another British scientist, Alfred Wallace, introduced an identical theory at about ... . Structures like these, which meet different needs but develop from the same body parts, are called homologous structures. This is all additional evidence of descent from a common ancestor. The...

• Word Count: 2685
• Approx Pages: 11
• Has Bibliography
• Grade Level: High School