divergent evolution

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Darwin’s Finches are groups of birds with similar body shape and size but occupy their own niche and once had ancestral species. This is an example of ____. DIVERGENT EVOLUTION 1

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Darwin’s Finches are groups of birds with similar body shape and size but occupy their own niche and once had ancestral species. This is an example of ____. Divergent evolution. - PowerPoint PPT Presentation

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Page 1: Divergent evolution

Darwin’s Finches are groups of birds with similar body shape and size but occupy their own niche and once had ancestral species. This is an example of

____.DIVERGENT EVOLUTION

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Page 2: Divergent evolution

The evolution of an ancestral species into an

array of species that occupy diverse habitats is called

_____ radiation.ADAPTIVE

2

Page 3: Divergent evolution

Similar species : unrelated organism evolve similar traits because they

live in similar environments .

CONVERGENT EVOLUTION3

Page 4: Divergent evolution

The Akialoa shown on top has a beak that does

what?

TO REACH NECTAR IN FLOWERS

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Page 5: Divergent evolution

Structures that have a similar evolutionary origin and

structure but are adapted for different purposes, such as a bat

wing and a human arm, are called _____.

HOMOLOGOUS5

Page 6: Divergent evolution

Similar structure and function, have no

common evolutionary origin..

ANALOGOUS

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Page 7: Divergent evolution

_______ can be best defined as the organism with favorable

traits that are able to reproduce and pass their traits on to their

offspring.

NATURAL SELECTION

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Page 8: Divergent evolution

Any structure that is reduced in function in

living organism but many have been used in an

ancestor is known as a ____________.VESTIGIAL

STRUCTURE8

Page 9: Divergent evolution

The movement of genes into and out of the gene pool is called ______.

GENE FLOW9

Page 10: Divergent evolution

A variety of structural adaptations called

__________ provides protection for an organism by copying the appearance

of another species.

MIMICRY

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Page 11: Divergent evolution

An adult python pelvic girdle has some leg bones imbedded in its body are

considered ______.

VESTIGIAL STRUCTURES11

Page 12: Divergent evolution

True or False Regarding the theory of evolution:

•The theory is of changes in populations over time• The theory is changes in individuals not

populations over time• Fossil did not shape Darwin’s ideas regarding

Natural Selection•There are many examples documented in recent

years.

TRUE

FALSE

FALSE

FALSE

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Page 13: Divergent evolution

A structural adaptation enabling an organism to blend in with its

environment is called what?________CAMOUFLAGE

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Page 14: Divergent evolution

________ is a technique in which the breeder

selects particular traits.

ARTIFICIAL SELECTION

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Page 15: Divergent evolution

Paleontologist have concluded from fossils that ancestors of whales were possible land-

dwelling doglike animals. True of False.•These changes take place relatively quickly in

individuals•The fossil record is incomplete•The fossil record is complete

• Fossils are not used in the theory

FALSE TRUE

FALSE

FALSE

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Page 16: Divergent evolution

True or false? Animals hibernate.. 1.To conserve energy.2. To avoid harsh climate conditions.3. To locate prey.4. To survive when food is hard to find.

TRUE

TRUEFALSE

TRUE16

Page 17: Divergent evolution

What type of protective adaptation does this show?

CAMOUFLAGE 17

Page 18: Divergent evolution

Match the bird’s beak and food.

INSECTS

ANTS

WORMS

SEEDS18

Page 19: Divergent evolution

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1. Artificial2. Camouflage3. Mimicry4. Gene pool5. Allelic frequency6. Genetic drift7. Stabilizing selection8. Polyploid9. Natural selection10.Punctuated equilibrium11.Vestigial structure12.Adaptive radiation

1. D2. C3. A4. D5. A6. A

1. C2. D3. C4. B5. C6. B

Page 20: Divergent evolution

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