Descent With Modification Flashcards, test questions and answers
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What is Descent With Modification?
Descent With Modification is a term used to refer to the process of evolution, which is the change over time of inherited traits in populations of organisms. It was first outlined by Charles Darwin in his book On the Origin of Species, published in 1859. In this book, he proposed that species evolve through a process of natural selection where individuals with certain traits are more likely to survive and reproduce than those without them; these advantageous traits can be passed on from generation to generation.Darwin’s theory provided an explanation for how life forms could have changed over time without a designer or creator. He showed that the various species alive today had all descended from common ancestors, and that they had evolved through gradual modifications over generations due to their interactions with their environment. This idea has since been explored and expanded upon by numerous scientists working across many fields, resulting in our current understanding of evolution as one of the most important theories in science. Today we understand Descent With Modification as a two-part process: first, genetic variation arises within populations through processes such as mutation and recombination; second, these variations are then acted upon by natural selection so that only those most suited to their particular environment survive and pass on their genes. Over time this can result in major changes between populations or even lead to new species arising out of existing ones. The concept is an incredibly powerful tool for understanding the diversity found both within and between different species today, helping us make sense of everything from why some plants are able to resist disease better than others, or why certain animals have adapted better than others for living in cold climates. It also allows us draw connections between modern organisms and ancient ones found preserved in fossils dating back millions or even billions of years ago giving us invaluable insights into our evolutionary history as well as inspiration for future research into how life will develop further over time.