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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.

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darwin s theory of evolution the puzzle of life s diversity chapter 15 1

Darwin’s Theory of EvolutionThe Puzzle of Life’s DiversityChapter 15-1

Image from: Biology by Miller and Levine; Prentice Hall Publishing©2006

write a definition
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

slide3
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?

slide4
What scientific explanation can account for the diversity of life?

ANSWER:

A collection of ______________,

__________, and ___________ known as

________________________

slide5
http://harrier.users.netlink.co.uk/Darwin_sm.jpg

The person who contributed the

most to our understanding of

evolution was

______________________

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

slide6
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

slide7
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

slide8
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

slide9
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

Each island had

its own ______

_________ of

plant and animal

species.

Biology by Miller and Levine; Prentice Hall Publishing©2006

giant tortoises of the gal pagos islands
Giant Tortoises of the Galápagos Islands

Section 15-1

and on Pinta Island, tortoise necks

were somewhere in between

Pinta

Tower

Marchena

Pinta IslandIntermediate shell

James

Fernandina

Santa Cruz

Isabela

Santa Fe

Hood Island

Saddle-backed shell

Floreana

Hood

On the desert-like Hood Island,

tortoises had long necks…

Isabela Island

Dome-shaped shell

…while on the lush rainforest of Isabela Island,

tortoises had short necks…

slide11
Biology by Miller and Levine; Prentice Hall Publishing©2006

After his voyage, Darwin spent a great deal of time thinking about his findings.

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

Darwin’s Theory of EvolutionIdeas that Shaped Darwin’s ThinkingChapter 15-2

Image from: Biology by Miller and Levine; Prentice Hall Publishing©2006

slide13
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

slide14
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

slide15
Ideas that shaped Darwin’s thinking:

SINCE THEN_____________________

_____________________

_____________________

http://wrgis.wr.usgs.gov/docs/usgsnps/animate/A08.gif

slide16
http://www.wasatchcomputers.net/gallery/elk_fight.jpg

Living things must compete for food, shelter, space, mates

REMEMBER !Chapter 3

_____________________

slide17
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 __________________________

slide18
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.

slide19
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

what s wrong with lamarck s hypothesis
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
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

slide22
Match the letter of the idea with

the man or men who proposed it:

Malthus

Hutton

Lamarck

Lyell

  • 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
Concept Map

Section 15-3

Evidence of Evolution

includes

which is composed of

which indicates

which implies

which implies

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