Chapter 22 Concept Map 3/4

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• Mechanisms Behind Evolution

• Mechanism 1:

• Mechanism 2:

• Inheritance of Acquired Traits

• Natural Selection

• Why it was wrong/major flaw:

• Use & disuse and inheritance of acquired traits

• Lamarck

• Developed By:

• Based On:

• Giraffes developed longer necks over time to reach taller trees

• No knowledge of inheritance

• Mendel and Genetics came later

• Because:

• Main Example:

• Based on observation of:

• Interaction of environment and heritable traits leads to adaptations & speciation

• 4 Components:

• Key Points:

• States That:

• A.R. Wallace

• Inherited traits influence survival and reproductive success

• All species capable of excess reproduction

• Heritable variation within populations

• Unequal survival and reproductive success leads to accumulation of favorable traits over generations

• Charles Darwin

• Developed By:

• The Voyage of the Beagle

• Origin of Species

• Through observations during:

• Wrote:

• Had the idea in a malaria induced state after being stung by a mosquito in Indonesia

• Submitted the idea prior to:

• Struggle for existence

• Important because:

• Not all offspring survive

• Because:

• Works on:

• Does not progress to "better" forms

• Populations

• Individuals

• Random Genetic Mutations

• Variability

• Goal or need driven

• Occurs in:

• NOT in:

• Environmental conditions are constantly changing

• Because:

• Genetics

• Due to:

• NOT: