Week 1 Checkpoint Theories of Biology

Week 1 Checkpoint Theories of Biology - Theories of Biology...

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Theories of Biology 1 The Major Theories of Biology Axia College of University of Phoenix
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Theories of Biology 2 Evolution by natural selection: This theory came about as a result of Charles Darwin trying to find an explanation for “why there are so many different living beings on earth?” (Pruitt, N. L., & Underwood, L. S. (2006). His theory contains two parts, the first part states that species change over generations. The second part states that what causes this change is natural selection. Inheritance: This is another theory by Gregor Mendel. He was trying to answer the question, “How are traits from parents inherited by offspring?” (Pruitt, N. L., & Underwood, L. S. (2006). He experimented with pea plants and observed that traits are passed on from parent to offspring by what we now know as genes and believed that this held true for all living things. Cells: This theory proposed by Matthias Schleiden and Theodor Schwann. They stated that all living things are made up of cells and that cells come from cells that already exist. “They
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This note was uploaded on 07/28/2011 for the course SCI 203 taught by Professor Hurst during the Spring '11 term at University of Phoenix.

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Week 1 Checkpoint Theories of Biology - Theories of Biology...

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