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evolution

Published on Nov 18, 2015

evolution

PRESENTATION OUTLINE

evolution

Destiny Stacy

who is charles darwin?

Charles Darwin was not a star student. He liked bird watching and reading for the pleasure of study. Darwin ended turning into one of the most important scientist ever. He was born in England and created the scientific theory of evolution
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Darwin's contributions

Charles Darwin contribution to science was creating the theory of evolution. This explains how modern organisms evolved over long periods of time. Darwin's experience was when he went on a boat trip and collected speciments of plant and animals
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What is he given credit for

He is famously known as the scientist that created the theory of evolution, this explains how modern organisms evolved over long periods of time through decent from common ancestors
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details of voyage

Darwin's voyage began in 1831 when he was invited to sail on a boat. Darwin planned on collecting speciments of plants and animals. They mapped the coast line of south america
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observations from voyage

Darwin came across a lot of diverse creatures. He wrote down in his notebook the chararistics of these animals and their different habitats. He saw that species are vary globally and locally. Also that species vary overtime

process of natural selection

Natural selection occurs in any situations in witch more individuals are born that can survive the struggle for exsistance there is natural heritable variation and adaption and there is variable fitness among individuals (survival of the fittest)
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Evidence that supports evolution

4 pieces of evidence that supports the theory of evolution is, common ancestors, DNA structures, fossil records and homologous structures.
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environmental effects on species over time

Adaptions can involve body parts or structures like tiger claws colors individuals with adaptions that are well suited to their environment can survive a longer period of time individuals who's chararistics are not well suited to their environment can die off over time.
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explanations of the different types of selection

Directional is when individuals at one end of the curve have a higher fitness than individuals in the middle or at the end. stabilizing is when individuals near the center of the curve have higher fitness than an individual at either end.
disruptive is when individuals at the outer ends have higher fitness then individuals near the middle of the curve
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scientist that also contributed

Hutton and Charles Lyell, concluded that earth is extremely old and that the process that changed earth in the past are the same processes that operate in the present.
Maithus reasoned that id the human population grew unchecked there would not be enough living space and food for everyone.
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book info

Miller, Kenneth k, and Joseph S. Levine Biology, Boston MA: Peanon, 2012 Pearson Education 2010 Web 19 Mar. 2014
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