chapter 7 the evolution of living things
Transcript chapter 7 the evolution of living things
CHAPTER 7 THE EVOLUTION
OF LIVING THINGS
HOW DOES EVOLUTION
A HEAVY AND STRONG BEAK FOR SEED
PLIER LIKE BEAK FOR CACTUS OR NECTAR
WARBLER FINCH HAS SMALL POINTED BEAK
FOR PROBING CRACKS IN ROCK FOR
CORMORANTS THAT CAN’T FLY
MARINE LIZARD OF GALAPAGOS
HE’S AN HERBIVORE
I’M FROM ECUADOR
EXAMPLES OF TORTOISE
TREAT ME WITH
TENDER LOVING CARE
THERE AREN’T MANY
DARWIN USES HIS OBSERVATIONS AND
OTHER SOURCES TO WRITE AND PUBLISH
THE ORIGIN OF SPECIES BY NATURAL
USED HIS PARENTS
CHARLES LYELL THE GEOLOGIST
ANIMAL AND PLANT BREEDERS
MORE EVIDENCE OF NATURAL
• Darwin based his theory of evolution by
natural selection on his parents.
• He noticed that his parents passed on
traits to his siblings.
• Darwin was not aware of Mendel’s work.
Darwin stated, “ Organisms have different
variations that help them survive.
• 1930’s-1940’s Scientists applied Mendel’s
work to Darwin’s theory of evolution.