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. - PowerPoint PPT PresentationTRANSCRIPT
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
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
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