BIOL 101 Lecture Notes - Lecture 7: Canis

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sammmyyyyyy567890

8 Oct 2022

School

Columbia College

Department

Science-BIOL

Course

BIOL 101

Professor

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Document Summary

The basic idea of biological evolution is that populations and species of organisms change over time. In the 1850s, darwin wrote on the origin of species, which was an influential (and controversial) book exploring the concept of evolution. In his book, darwin proposed that species evolve (undergo descent with modification ) and that all living things can trace their descent to a common ancestor. A species is a group of similar organisms that can interbreed with each other to make healthy, fertile offspring. Examples of species include homo sapiens (humans) and canis familiaris (domestic dogs) Darwin suggested a mechanism for evolution mechanism for evolution called natural selection, in which heritable traits that help organisms survive and reproduce become more common in a population over time. A heritable trait is one that is passed on from parents to children by way of genes.

Related Questions

True or False: Write TRUE if the statement is correct and write FALSE if the statement has incorrect information. If the statement is FALSE, identify the incorrect information and provide further explanations, complete solutions, and examples to support your answer.

5. The concept of evolution has been known for over 3,000 years. Charles Darwin, the father of evolution, devised a logical explanation for how evolution works. Darwin defined "descent with modification" as the theory that species change over time, give rise to new species, and share a common ancestor. Natural selection is the mechanism hypothesized by Darwin that states that physical changes, such as increased development of an organ (neck) due to increasing use (like in the case of giraffes), could be passed down to their offspring

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Biological evolution is the process whereby earthâs life changes over time through changes in the genes of populations of organisms in succeeding generations. Species have evolved from earlier, ancestral species through natural selection. Discuss this process in detail. Why is this beneficial for species? Why do you think there is controversy about human evolution?