Also use the Vocabulary Review PPT to help understand these important evolution concepts. Study...

Also use the Vocabulary Review PPT to help understand these important

evolution concepts.

Study Guide Review!!!!

Charles DarwinNaturalist who traveled the HMS Beagle to

the Galapagos Islands and discovered finches…The finches all had similarities but different

beaks due to the different types of foods they ate.

The finches changed because of speciation.

EvolutionInherited changes in a population over

time. Evidence that supports evolution:

Similar skeletal structuresDNAEmbryonic structures

Adaptations!Structures and behaviors that help an

organism find food, protection, and move from place to place.

Examples:

Theory of Evolution?NATURAL SELECTION!

Over productionGenetic Variation – organisms are genetically

diverse because of mutations!Struggle to Survive Successful Reproduction

Natural SelectionWho blends in? Who stands out?

SpeciationReasons for a population to separate…

Mountain range formingCanyons formingLake formingIslands separating or forming

Selective BreedingOrganisms with favorable traits being bred

for those specific traits.

Selective Breeding vs. Natural Selection

Natural selection occurs when population members with advantageous traits are able to survive and reproduce. They pass on their advantageous traits to their offspring. Selective breeding occurs when humans breed individuals with desirable traits in order to create offspring with the same desirable traits.

Steps of Natural SelectionOverproductionGenetic VariationStruggle to SurviveSuccessful Reproduction

Good Luck Studying!