Transcript Darwin’s Theory of Evolution The Puzzle of Life’s Diversity Chapter 15-1 Image from: Biology by Miller and Levine; Prentice Hall Publishing©2006

Darwin’s Theory of Evolution
The Puzzle of Life’s Diversity
Chapter 15-1
Image from: Biology by Miller and Levine; Prentice Hall Publishing©2006
WRITE A DEFINITION:
________________:
change over time; the process by which modern
organisms have descended from ancient
organisms
_______________
a well-supported testable explanation of
phenomena that have occurred in the natural world
_______________:
the preserved remains of ancient organisms
http://www.millan.net
REMEMBER !
The total variety of all the
organisms in the biosphere
= ________________
Where did all these different organisms
come from?
How are they related?
What scientific explanation can
account for the diversity of life?
ANSWER:
A collection of ______________,
__________, and ___________
known as
________________________
The person who contributed the
most to our understanding of
evolution was
______________________
http://harrier.users.netlink.co.uk/Darwin_sm.jpg
In 1831, at age 22, he joined the crew of
the _______________ as a naturalist for
a ________ voyage around the world.
Image from: Biology by Miller and Levine; Prentice Hall Publishing©2006
During his travels, Darwin wrote thousands
of pages in his journals, drew pictures of
the things he saw, and collected a vast
amount of ______________ that led him
to propose a _______________________
about the way _____________.
http://www.elsie.brandeis.edu/images/journals.gif
http://www.24hourmuseum.org.uk/chg/content/images/2003_2233.JPG
DARWIN WONDERED?
Wy do Argentina and Australia have ________
______ even though they have ________
grassland ____________?
Why are there no ______ in Australia and
no ________ in England?
Why have so many species
disappeared?
How are these ______ species
related to living species?
http://www.rc.umd.edu/praxis/mitchell/images/dinosaur1.gif
Who Was Charles Darwin?
While on his voyage around the world
aboard the ____________, Charles Darwin
spent about one month observing life on the
____________________.
There, he encountered some unique animals,
such as _______ and _________.
http://www.darwinadventure.com/pictures/galapagos_giantortoise.jpg
http://mikebaird.com/ecuador/images/galapagos_off_ecuador_ng_map.jpg
The Galάpagos Islands are close together
but have very different ________.
Some were hot and dry, with
little vegetation.
Others had more rainfall and were
rich in vegetation
Biology by Miller and Levine; Prentice Hall Publishing©2006
Each island had
its own ______
_________ of
plant and animal
species.
Giant Tortoises of the Galápagos Islands
Section 15-1
and on Pinta Island, tortoise necks
were somewhere in between
Pinta
Pinta Island
Tower
Marchena
Intermediate shell
Fernandina
James
Santa Cruz
Isabela
Santa Fe
Hood Island
Floreana
Isabela Island
Hood
Saddle-backed shell
On the desert-like Hood Island,
tortoises had long necks…
Dome-shaped shell
…while
Go to on the lush rainforest of Isabela Island,
Section:tortoises had short necks…
After his voyage, Darwin spent a great
deal of time thinking about his findings.
Biology by Miller and Levine; Prentice Hall Publishing©2006
He began to wonder if animals living on
different islands had once been members
of the ______________ that had
developed___________ characteristics
after becoming ________ from one
another in different habitats.
Darwin’s Theory of Evolution
Ideas that Shaped Darwin’s Thinking
Chapter 15-2
Image from: Biology by Miller and Levine; Prentice Hall Publishing©2006
Ideas that shaped Darwin’s thinking:
In 1785 ______________
proposes that the EARTH
was ________ by
_________________
occurring over
__________ periods of
time, and is
_______________ old.
http://www.creationism.org/books/TaylorInMindsMen/TaylorIMMc03.htm
Ideas that shaped Darwin’s thinking:
In 1833 _______________
explains that the geological
processes still ___________
have shaped Earth’s
features over
_________________
http://www.biologydaily.com/biology/Sir_Charles_Lyell
Ideas that shaped Darwin’s thinking:
SINCE THEN
_____________________
_____________________
_____________________
http://wrgis.wr.usgs.gov/docs/usgsnps/animate/A08.gif
http://www.wasatchcomputers.net/gallery/elk_fight.jpg
REMEMBER !
Chapter 3
_____________________
Living things must compete for
food, shelter, space, mates
http://www.nndb.com/people/250/000024178/malthus.jpg
Ideas that shaped Darwin’s thinking:
__________________
He observed that babies were being born
faster than people were dying. He
reasoned that if the human population
continued to grow, sooner or later there
would be __________________________
http://www.educa.rcanaria.es/fundoro/00.corsi.htm
Ideas that shaped Darwin’s thinking:
__________________
was one of first scientists
to recognize living things
________________ and that
all species were ___________ from
other species.
Lamarck published his hypothesis of
_________________________________
the year Darwin was born.
The male fiddler crab uses its
front claw to _________mates
and fight off _____________.
Through _________ use, the
front claw becomes ________.
The fiddler passes on this
__________ characteristic to
its offspring
http://www.geocities.com/arnold_schwarzenegger_pictures/
What’s wrong with Lamarck’s hypothesis?
Lamarck didn’t know about
genes and how traits are
_______.
If you lifted weights your
whole young adult life, and
then you had children, would
your kids be more muscular?
NO! ________ traits can ____ be __________
to their offspring.
What’s right with Lamarck’s hypothesis?
Lamarck was first to
develop a scientific
hypothesis about
______________
and recognize that
organisms are
___________________________
http://pegasus.cc.ucf.edu/~he599900/giraffeeating.jpg
Match the letter of the idea with
the man or men who proposed it:
Malthus
Hutton
Lyell
a.
b.
c.
d.
Lamarck
The earth is really old, and slowly changes
Living things pass acquired changes on to their offspring
Sooner or later growing populations run out of resources
Living things change slowly over time because of competition for resources,
and pass those changes on to their offspring
Concept Map
Section 15-3
Evidence of
Evolution
includes
which is composed of
Go to
Section:
which indicates
which implies
which implies