Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Put this in a 400-word paragraph
The Development of Evolutionary Theory,
Lecture 2
This 17th-century map shows the Earth at the
center of the solar system.
• Ideas generated out of the Scientific
Revolution challenged such long-standing
beliefs.
• Aristotle argued that the sun and the planets
revolved around the earth.
George-Louis Leclerc, Comte de Buffon (1707-1788), recognized the
dynamic relationship between the external environment and living forms.
• Although he never discussed the diversification of life over time, he recognized
that different regions have different plants and animals and that alterations of the
external environment (such as climate) were agents of change.
• Some scientists today (Ernst Mayr) credit Leclerc as the “father of evolutionism
Jean-Baptiste Lamarck developed a theory to explain the evolutionary
process, known as the inheritance of acquired characteristics.
• An example is the giraffe: having stripped the leaves from the lower branches of
a tree, the animal tries to reach leaves on the upper branches and the neck becomes
longer. This longer neck is then passed on to offspring.
• The theory suggested a dynamic relationship between the species and
the environment.
• This is also sometimes referred to as the “use-disuse theory.”
Discussion 2
Natural selection is the process through which living organism populations adapt and change. The theory of evolution is described in this chapter as something that has been tested and shows lots of support behind the many theories. Within these theories, there is a lot of genetic evidence. Even though there are a lot of theories, the ones that are worth testing are the ones that usually make it all the way and make their way to a textbook and are still being taught about in the present time. Considering the brief history presented, the issue of evolution is that natural selection plays a huge part in this role. Through science, there were many new changes to learn beyond what they anticipated. Jean-Baptiste Lamarck is the one who developed the theory to explain the evolutionary process, also referred to as the “use-disuse theory”. Charles Darwin’s ideas revolved around sexual reproduction.
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