20
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

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

Embed Size (px)

Citation preview

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 EVOLUTION1

The evolution of an ancestral species into an

array of species that occupy diverse habitats is called

_____ radiation.ADAPTIVE

2

Similar species : unrelated organism evolve similar traits because they

live in similar environments .

CONVERGENT EVOLUTION3

The Akialoa shown on top has a beak that does

what?

TO REACH NECTAR IN FLOWERS

4

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

Similar structure and function, have no

common evolutionary origin..

ANALOGOUS

6

_______ 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

7

Any structure that is reduced in function in

living organism but many have been used in an

ancestor is known as a ____________.VESTIGIAL

STRUCTURE8

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

GENE FLOW9

A variety of structural adaptations called

__________ provides protection for an organism by copying the appearance

of another species.

MIMICRY

10

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

considered ______.

VESTIGIAL STRUCTURES11

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

12

A structural adaptation enabling an organism to blend in with its

environment is called what?________CAMOUFLAGE

13

________ is a technique in which the breeder

selects particular traits.

ARTIFICIAL SELECTION

14

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

15

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

What type of protective adaptation does this show?

CAMOUFLAGE 17

Match the bird’s beak and food.

INSECTS

ANTS

WORMS

SEEDS18

19

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

20