Transcript bYTEBoss PPT_2.7.12.evolution2

CATALYST
e CATALYST is to be done independently and silently.
swer the following questions in your notebook:
TIME REMAINING:
7:00 MINUTES
1. Describe the main differences between the
organisms that existed 2-4 billion years ago and
the organisms that exist today. Remember to use
the appropriate vocabulary (abiogenesis,
biogenesis, prokaryotic, etc.)
CATALYST
e CATALYST is to be done independently and silently.
swer the following questions in your notebook:
TIME REMAINING:
6:00 MINUTES
1. Describe the main differences between the
organisms that existed 2-4 billion years ago and
the organisms that exist today. Remember to use
the appropriate vocabulary (abiogenesis,
biogenesis, prokaryotic, etc.)
CATALYST
e CATALYST is to be done independently and silently.
swer the following questions in your notebook:
TIME REMAINING:
5:00 MINUTES
1. Describe the main differences between the
organisms that existed 2-4 billion years ago and
the organisms that exist today. Remember to use
the appropriate vocabulary (abiogenesis,
biogenesis, prokaryotic, etc.)
CATALYST
e CATALYST is to be done independently and silently.
swer the following questions in your notebook:
TIME REMAINING:
4:00 MINUTES
1. Describe the main differences between the
organisms that existed 2-4 billion years ago and
the organisms that exist today. Remember to use
the appropriate vocabulary (abiogenesis,
biogenesis, prokaryotic, etc.)
CATALYST
e CATALYST is to be done independently and silently.
swer the following questions in your notebook:
TIME REMAINING:
3:00 MINUTES
1. Describe the main differences between the
organisms that existed 2-4 billion years ago and
the organisms that exist today. Remember to use
the appropriate vocabulary (abiogenesis,
biogenesis, prokaryotic, etc.)
CATALYST
e CATALYST is to be done independently and silently.
swer the following questions in your notebook:
TIME REMAINING:
2:00 MINUTES
1. Describe the main differences between the
organisms that existed 2-4 billion years ago and
the organisms that exist today. Remember to use
the appropriate vocabulary (abiogenesis,
biogenesis, prokaryotic, etc.)
CATALYST
e CATALYST is to be done independently and silently.
swer the following questions in your notebook:
TIME REMAINING:
1:00 MINUTES
1. Describe the main differences between the
organisms that existed 2-4 billion years ago and
the organisms that exist today. Remember to use
the appropriate vocabulary (abiogenesis,
biogenesis, prokaryotic, etc.)
CATALYST
Silently and on your own, complete the task below
When you are finished, put your pencil down and look up. Remain silent to allow
others to finish.
Answer the following questions:
2.
Which of the following is a source of variability?
A. mitosis
B. mutation
TIME REMAINING:
2:00 MINUTES
C. genetic drift
D. none of the above
3.
Which types of organisms did NOT exist on Earth 4 billion years ago?
A. aerobic prokaryotes
B. anaerobic prokaryotes
C. aerobic eukaryotes
D. anaerobic eukaryotes
CATALYST
Silently and on your own, complete the task below
When you are finished, put your pencil down and look up. Remain silent to allow
others to finish.
Answer the following questions:
2.
Which of the following is a source of variability?
A. mitosis
B. mutation
TIME REMAINING:
1:00 MINUTES
C. genetic drift
D. none of the above
3.
Which types of organisms did NOT exist on Earth 4 billion years ago?
A. aerobic prokaryotes
B. anaerobic prokaryotes
C. aerobic eukaryotes
D. anaerobic eukaryotes
CATALYST
e CATALYST is to be done independently and silently.
swer the following questions in your notebook:
1. Describe the main differences between
organisms that existed 2-4 billion years ago and
the organisms that exist today. Remember to use
the appropriate vocabulary (abiogenesis,
biogenesis, prokaryotic, etc.)
CATALYST
Silently and on your own, complete the task below
When you are finished, put your pencil down and look up. Remain silent
to allow others to finish.
Answer the following questions:
2.
3.
Which of the following is a source of variability?
A.
mitosis
B.
mutation
C.
genetic drift
D.
none of the above
Which types of organisms did NOT exist on Earth 4 billion years ago?
A.
aerobic prokaryotes
B.
anaerobic prokaryotes
C.
aerobic eukaryotes
Darwin
and
Evolution
How is there so
much diversity?
• Charles Darwin
made observations
while he was
traveling on a ship
called the Beagle in
the Galapagos
Islands.
Galapagos
Islands
Darwin saw variation
(difference) within
species on the
different Islands
Lonesome George
• Last known individual of one of 11 subspecies; three
have already died out
• “Rarest creature” in the world
• 60-90 years of age
Darwin’s Finches
Different
finches lived in
different
environments
Darwin’s Finches
The finches
had
different
beaks
What did his
observations mean?
Darwin’s Finches
If you were
a finch who
had to eat
BIG seeds,
which beak
would be
best?
Darwin’s Finches
If you were
a finch who
had to eat
SMALL
seeds,
which beak
would be
best?
Darwin’s Finches
Finches beaks
matched their
environment
Darwin used his
observations to
develop the theory of
evolution
EVOLUTION:
change over
time
What makes you
different from a
chimpanzee?
Evolution of Intelligence?
Research by Matsuzawa et al.
Ayumu and short-term memory
Ayumu averages 80% accuracy with 9-digit strin
Humans average 40% with 5-digit strings
Try it yourself:
http://games.lumosity.com/chimp.html
What is Intelligence?
Behavioral flexibility
Insight and problem solving
Calculation
Memory
Social awareness and skill
Language
Culture and learning
In order for evolution to
happen, you need….
V
S
I
T
Variation
Selection
Inheritance
Time
Stands for…
Variation
S
I
T
Means…
Difference
between
individuals
Stands for…
V
Selection
I
T
Means…
Individuals
with “good”
traits will
survive and
reproduce
more
Stands for…
V
S
Inheritance
T
Means…
Genes are
passed from
parent to
child
Stands for…
V
S
I
Time
Means…
MANY
generations
Think: What part
of VSIT is this?
many generations
differences between individuals
individuals with good traits survive
longer and reproduce more
genes are passed from parent to
child
5 thousand years
A child gets his parents genes
for brown eyes
different kinds of beaks
A butterfly who can camouflage to
its environment survives longer
Selection
Selection
Without looking at your notes,
what 4 things do you need for
evolution to happen?
S = Selection
Natural selection: organisms best
suited to their environment as a
result of good genes survive and
reproduce
Selection
Natural selection = selection by nature
Natural selection = nature (NOT a human)
decides who survives.
Think: Natural
selection or not?
A dog breeder chooses to mate only
big dogs:
Think: Natural
selection or not?
Birds with a big beak are more likely
to survive and reproduce on a
certain island:
Think: Natural
selection or not?
Primates who are smarter are more
likely to have children:
Think: Natural
selection or not?
A farmer only allows his cows with
dark fur to mate:
I = Inheritance
•Inheritance = genes are passed down from
one generation to the next
•Traits that you acquire (get during your life)
are NOT inherited.
EX: if you dye your hair purple, your kids will NOT
have purple hair!
Think: Inheritance or
Think: Inheritance or not?
not?
A mother passes her brown eyes to
her son:
Think: Inheritance or
not?
A man who cuts his hair short has a
child who also cuts his hair short:
EXIT
TICKET
EXIT TICKET
ilently and on your own, answer the questions below
1. What did Darwin see between the species he observed on the
Galapagos islands?
A. mutation
B. variation
C. asexual reproduction
D. genetic bottleneck effect
2. Natural selection is the concept that organisms best suited to their
________ as a result of good genes ________ and ________.
A. habitat; dominate and survive
B. environment; adapt and camouflage
C. environment; survive and reproduce
D. habitat; adapt and change
EXIT TICKET
3. What is evolution?
4. What are the four ingredients you need for
evolution to occur?
5. What part of VSIT is described by: “genes are
passed from parent to child?”
A. variation
B. selection
C. inheritance
D. time