Evidence of Evolution. Evolution The process by which life has changed over time. Macroevolution Microevolution.
Post on 13-Jan-2016
219 Views
Preview:
Transcript
Evidence of EvolutionEvidence of Evolution
EvolutionEvolution
The process by which The process by which life has changed over life has changed over time.time.
MacroevolutionMacroevolution MicroevolutionMicroevolution
EvolutionEvolution
What are What are speciesspecies?? Species literally means ‘kinds’.Species literally means ‘kinds’. We recognize most species by their We recognize most species by their
appearance.appearance.
EvolutionEvolution
Taxonomy( systematics)Taxonomy( systematics) – branch – branch of biology that names and of biology that names and classifies speciesclassifies species
Carl LinnaeusCarl Linnaeus
Will cover Will cover more in more in Unit 16Unit 16
(1707–1778), a Swedish botanist, invented the modern system of binomial nomenclature.
EvolutionEvolution
ExampleExample
Panthera pardusPanthera pardus
PantheraPanthera parduspardus
PopulationPopulation
All the members of a All the members of a species living in a species living in a particular areaparticular area
new variations arise new variations arise these individuals tend these individuals tend
to surviveto survive This is where evolutionThis is where evolution
occurs ( not indivual) occurs ( not indivual)
AdaptationsAdaptations
Adaptations are special features Adaptations are special features that allow a plant or animal to live that allow a plant or animal to live in a particular place or habitat. in a particular place or habitat.
structures, physiology structures, physiology
AdaptationsAdaptations
ExplainExplain why life why life
is so is so diversediverse
EvolutionEvolution WhileWhile, evolution is , evolution is
an explanation for the an explanation for the unity of lifeunity of life. .
All organisms share the All organisms share the same characteristics of same characteristics of life because they can life because they can trace ancestry to the trace ancestry to the
first cell or cells.first cell or cells.
EvolutionEvolution Example:Example:
Humans and monkeys share a Humans and monkeys share a common ancestor common ancestor which separated into 2 separate lineageswhich separated into 2 separate lineages
40 million years ago40 million years ago
New world New world South America migration South America migration Old worldOld world
Today’s LabToday’s Lab
We will look at 2 We will look at 2 types of data that types of data that supports the supports the hypothesis of hypothesis of common ancestorscommon ancestors::
11) the fossil record) the fossil record
2) comparative anatomy2) comparative anatomy
Don’t forget….quiz next week Don’t forget….quiz next week over evolutionover evolution
top related