Transcript What is an analogous structure? - Class Pages

Describe what an adaptation is.
Before Charles Darwin, what did most
people believe about the world?
Which best defines ‘natural
selection’?
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A. Survival of the best
B. Predator vs. Alien
C. Survival of the strongest
D. Survival of the fittest
What is the three word definition of
evolution?
Darwin studied organisms on the
Galapagos Islands.
On his voyage on the Beagle, Charles
Darwin saw a many things that got
him thinking what he ‘knew’ might
not be correct. What are two of the
things he saw?
The biggest difference Darwin
noticed about the finches he found
was the
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A. similarities of the birds’ embryos.
B. the different shapes of the birds’ beaks.
C. length of the birds’ necks.
D. number of eggs in each bird’s nest.
Where would a fossil least likely
form?
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A. a stream
B. swamp
C. ocean floor
D. desert
The term fitness means just how
physically strong an organism is.
What does the word “fitness” mean?
What is the scientific name for the
diagram shown?
The number and location of bones
in many fossil vertebrates are
similar to those living vertebrates.
Most biologists would probably
explain this fact on the basis of
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A. the struggle for existence.
B. a common ancestor.
C. the needs of the organisms.
D. inheritance of acquired characteristics.
Artificial selection is the same as
selective breeding.
Why do organisms have more offspring
than they can possibly take care of?
Why do populations needs variation?
What is an analogous structure?
A whale pelvis, the human
appendix, and the wings of the kiwi
bird are examples of
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A. vestigial structures
B. natural variation
C. fossilized structures
D. shared traits
Darwin’s theory of evolution is
based on the idea(s) of
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A. use and disuse
B. the transmission of acquired traits
C. variation and natural selection
D. a tendency towards perfect, unchanging species
A factor that keeps species separate
(unable to interbreed) is
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A. different mating behaviors
B. reproduction at different times
C. incompatible reproductive strategies
D. all of the above
Name three characteristics the birds
and amphibians have in common.
According to Darwin’s theory of
evolution, ________________ change
over time.
What organisms are more closely
related – crocodiles and mammals, or
crocodiles and birds?
What is a homologous structure?
What is the fossil record?
Who did Darwin turn to when he was
trying to make sense of the
observations he made on his 5-year
journey?
What differences are apparent in
the bodies of the three tortoise
species shown?
• Neck length, shell shape,
shell size.
Dolphins and sharks are more closely
related than dolphins and wolves.
What are cladograms or family trees
based on?
• A. evolved characteristics
• B. structures with the same function, regardless of how they
are built
• C. how awesome organisms look
• D. all of the above
Example(s) of fossils include
preserved
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A. body parts
B. footprints
C. eggs
D. all of the above
Most fossils form in
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A. sedimentary rock
B. the sap of ancient trees
C. ice flows
D. muddy riverbanks
Give an example of an analogous
structure.
What does a cladistic analysis show
about organisms?
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A. the relative importance of each derived characteristic
B. the order in which traits evolved
C. the general fitness of the organisms shown
D. all physical traits of each organisms analyzed
What is the geologic time scale?
Explain how relative dating works.
The study of the processes of
multicellular organisms as they
develop from fertilized eggs to adults
is called ______________
The development of the complex
mammalian eye is a good example of
how evolution can refine/change
existing ______________
Explain why the fossil record does not
include every type of organism that
ever lived.
Give an example of a homologous
structure.
Charles Darwin took all the credit for
the idea of natural selection.
Match the term with the most
appropriate definition (5 questions,
1 pt each).
Variation
Specimen preserved in
sediment or rock
Competition
Mass extinction
K-T Boundary
Differences in traits and
characteristics
Fitness
Puts strain on organisms and
available resources
Fossil
Ability to survive and
reproduce offspring that
can survive.
The fossil record contains a fossil
from every organism that ever lived.
With peppered moths before the
Industrial Revolution, which
phenotype was found more often?
The funny bone is not a bone.
Explain how the island geography
might have affected the species on
the Galapagos.
How do medicine and antibiotics
model natural selection in bacteria?
Which organism is devolving?
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A. Miley Cyrus
B. Justin Beiber
C. koala bear
D. all of the above