Adaptations and Evolution

1. Adaptations and Evolution

2. Adaptation • The adjustment of an organism to its environment by which its “fitness” or ability to survive is enhanced • If an organism does not adapt to its environment it WILL NOT survive • What are some examples of adaptations? • With your table group come up with a list of 5 adaptations.

3. Examples of Adaptations • Polar Bears—thick fur • Small Snakes– venom • Chameleon– ability to change its color • Artic Fox– white fur • Camel– hump • Bird Beaks– different types for different foods • **Choose one of these adaptations or one showed in the video to write a paper (at least ½ page) explaining the adaptation and how it helps the animal survive in its habitat.** DUE MONDAY!! (MUST be typed in 12pt font)

4. Natural Selection • Also known as “Survival of the Fittest” • Process by which traits become either more or less common in a population based on the adaptations of animals • If adapted well to environment will reproduce and pass on the adaptation • If not adapted well to the environment animal will not live to reproduce and will not pass on its traits

5. Selective Breeding • Process by which humans breed animals and plants for particular traits. • Examples: • Dog breeds for size/ physical characteristics and for less health issues • Cows for better milk production • Corn for better crop yields

6. Evolution • The change of organisms over time via adaptations and natural selection • Theory presented by Charles Darwin in his book The Origin of Species in 1859