Transcript Natural Selection Review

Natural Selection Review
Millionaire Game
Question #1
• Which is the
best example of
how science
&
improvements
in technology
affect life?
A. A birdwatcher feeds seeds to
birds.
B. A person plants a garden in
her backyard.
C. A student watches a snake
eat a mouse.
D. A dairy farmer breeds cows
to produce more milk
Answer #1
D. A dairy farmer breeds
cows to produce more
milk
Question #2
What makes an organism
biologically successful?
A.
B.
C.
D.
It is the strongest
It makes the most money.
It eats the most food.
It has offspring.
Answer #2
D. It has offspring.
Question #3
Which of the following is NOT an example of
evidence that Darwin and other scientists found
to create the Theory of Evolution?
A. The fact that humans came directly
from monkeys.
B. Similarities in different species body
structures.
C. Examination of Fossil evidence.
D. DNA of different species are very similiar.
Answer #3
A. The fact that humans
came directly from
monkeys.
(Humans DID NOT evolve from monkeys.
Monkeys and humans are related, but so
are humans and whales)
Question #4
Which of the following is NOT one of the four
factors that affect Natural Selection?
A.
B.
C.
D.
Overproduction
Genetic Engineering
Survival and Reproduction
Competition and Selection
Answer #4
B. Genetic Engineering
(Genetic Engineering is done by humans, not
nature)
Question #5
• In the early 1800s, Jean-Baptiste
Lamarck described how giraffes
developed such long necks. He
explained that a giraffe’s neck
grew longer as she stretched to
reach leaves high in trees. The
giraffe then passed on her
longer neck to her offspring, so
the next generation had longer
necks than the generation
before. Since that time, we have
learned more about how traits
are passed from parent to
offspring.
Which statement best evaluates
Lamarck’s ideas using current
science knowledge?
• A. Neck length is an inherited
trait and can be changed by the
giraffe’s behavior, so Lamarck’s
ideas are valid.
• B. Neck length is an inherited
trait and cannot be changed by
the giraffe’s behavior, so
Lamarck’s ideas are not valid.
•
C. Neck length is an acquired
trait, so giraffes’ necks will be
different lengths depending on
the time of year they are born.
•
D. Neck length is an acquired
trait, so giraffes’ necks will
change as they age
Answer #5
• B. Neck length is an inherited
trait and cannot be changed by
the giraffe’s behavior, so
Lamarck’s ideas are not valid.
Question #6
Many animals that live near the North Pole are
white. Why is being white a helpful inherited trait
for the North Pole environment?
A. white absorbs more heat
B. white camouflages in with the
surroundings
C. white reflects sunlight
D. white helps animals to move faster
Answer #6
B. white camouflages in
with the surroundings
Question #7
Some organisms have
colorful appearances to
warn their predators that
they are harmful or do not
taste good. If other
organisms mimic these
colors in areas where the
predator is not exposed to
the original organisms, how
successful would the mimics
be in survival?
They would be successful because
predators are always afraid of
colorful organisms
B. They will be successful because
predators are colorblind and will
not see them
C. They will not be successful
because predators avoid eating
others only after an original
harmful or distasteful
experience
D. They will not be successful
because predators only avoid
eating others after their original
harmful experience kills them
A.
Answer #7
C.
They will not be successful
because predators avoid eating
others only after an original harmful
or distasteful experience
Question #8
Birds in a desert climate survive
on soft parts of cactus. Scientists
observed that during a drought,
many of the birds died. The ones
that survived had larger beaks
and were able to crack open and
eat hard seeds that would
ordinarily not be used. The next
generation of birds all had large
beaks.
How did inherited traits
help some birds survive?
A. all surviving birds
migrated
B. inherited traits helped
birds get water
C. inherited traits helped
birds change foods
D. the inherited traits
changed the environment
Answer #8
C.
inherited traits helped birds
change foods
Question #9
King Snakes are
mimics of the very
dangerous Coral
Snake. If they
were released into
Northern Utah,
where there are no
Coral Snakes, how
successful would
the King Snake be?
A. Very Successful. They would scare
their predators away by looking like
a Coral Snake.
B. Very Successful. They do not need
to hide from predators because
they are snakes.
C. Not Successful. They would not be
able to live without the Coral Snake
helping it hunt.
D. Not Successful. Its predators would
not be scared of its bright stripes.
Answer #9
D. Not Successful. Its
predators would not be
scared of its bright
stripes.
Question #10
Students were asked to pretend they were birds using
their beaks to eat. Their beaks were writing utensils and
their food were paperclips. Students that had mechanical
pencils survived the eating season more often than those
with pens. How does this relate to Darwin's theory of
Natural Selection?
A. The beak that a bird is born with can help it to
survive in its environment.
B. Birds beaks are like pencils, not like pens.
C. Bird survival is only dependant on the length of
the feeding season.
D. A Bird species can adapt to their environment in
one generation.
Answer #10
A. The beak that a bird is born
with can help it to survive in
its environment.
Question #11
Which is the best
example of how
science &
improvements in
technology affect
life?
A. Some bacteria can cause lifethreatening diseases in
humans.
B. Human genetic material is
inserted into bacteria to
produce human insulin.
C. A rabbit grows white fur in the
winter for camouflage.
D. The wind blows wing-shaped
seeds to more fertile soil.
Answer #11
B. Human genetic
material is inserted
into bacteria to
produce human
insulin.
Question #12
Given the data table
above, which is the
best display to
summarize the data?
Answer #12
D.
Data from question:
Question #13
Students dropped different colored toothpicks in lawn grass. They were
given one minute to pick up as many toothpicks as they could. Students
found that they had more red and blue toothpicks than green.
Ecologists observed that the Varying hares (rabbits) fur is brown in the
summer and white in winter. They found that the population remained
about the same in winter and summer.
What advantage does the model presented in the classroom have over the
natural setting?
A. It shows how easily people would find animals of different colors
B. It is more accurate because classroom models better represent
nature than nature itself
C. It is easier to calculate the results because of the controlled
environment
D. It bears no advantage over the natural testing environment
Answer #13
C. It is easier to calculate
the results because of the
controlled environment
Question #14
Your mother sends you to the store to buy some tomatoes.
You notice when you get there that there are several
choices to make. Among those choices you notice a sign
that announces a new genetically altered tomato that
resists "rotting," "stays firmer longer" and has a "longer
shelf life." What are the benefits of this genetic
engineering?
A. The tomato is a brighter color.
B. This tomato will last longer on grocery shelves.
C. This tomato will be better adapted to survive in
nature.
D. This tomato has more nutrients for humans. (ie. is
better for you.)
Answer #14
B. This tomato will last
longer on grocery
shelves.
Question #15
Students dropped different colored toothpicks in lawn grass. They
were given one minute to pick up as many toothpicks as they could.
Students found that they had more red and blue toothpicks than
green.
Ecologists observed that the Varying hares (rabbits) fur is brown in
the summer and white in winter. They found that the population
remained about the same in winter and summer.
According to these investigations, how does color affect
organisms?
A. It helps them find communities to live in
B. It helps them stand out from their surroundings
C. It helps them find more food
D. It helps them escape predators
Answer #15
D. It helps them
escape predators
Question #16
Turtles lay more eggs than they need for species
survival. Why do they lay so many eggs?
A. They want that many offspring to survive
and reproduce.
B. They need to overproduce offspring in
order to allow some to die and only the
strongest to survive and reproduce.
C. They want to make food for birds.
D. They know that some of their offspring will
have mutations.
Answer #16
B. They need to overproduce
offspring in order to allow some
to die and only the strongest to
survive and reproduce.
Question #17
What is the difference between Selective
Breeding and Natural Selection?
A. Selective breeding allows humans to choose the
best traits for a species and Natural Selection does not.
B. Natural Selection is human caused and Selective
breeding happens in nature.
C. Natural Selection is when organisms that are
better adapted survive and Selective Breeding is when
humans choose desirable traits.
D. They are both the same, there is no difference.
Answer #17
C. Natural Selection is when
organisms that are better
adapted survive and Selective
Breeding is when humans
choose desirable traits.
Question #18
A 7th grade science student travels to a rainforest and observes
the leaves of jungle plants. He then travels to a desert and
observes leaves on native plants there. He concludes that
large, flat leaves give plants in the jungle an advantage, and
plants in the desert do better if they have small leaves. Which
statement best describes the student’s conclusion?
A. It is a bad conclusion because people that lived in those
environments planted the plants that they wanted.
B. It is a bad conclusion because plants can't change in order to
live in different environments.
C. It is a good conclusion because the plants adapted to the
environments that they live in.
D. It is a good conclusion because plants can't change in order to
live in different environments
Answer #18
C. It is a good conclusion
because the plants
adapted to the
environments that they
live in.
Question #19
Read the passage.
Which of the underlined statements is the best
example of science and technology affecting life?
A. 1
B. 2
C. 3
D. 4
Answer #19
C. 3
Question #20
Students made a model
ecosystem on their school
lawn. They dropped equal
numbers of different
colored toothpicks in the
grass to represent insects.
They were given one
minute to pick up as many
toothpicks as they could.
They picked up more red
and blue toothpicks than
green. How is this model
different from nature?
A. It represents natural
camouflage.
B. It demonstrates the
relationship between insects
and their predators.
C. There are some variables
acting in nature not
demonstrated in this activity.
D. The colored toothpicks
represent the camouflage in
insect wings and bodies.
Answer #20
C.
There are some variables
acting in nature not
demonstrated in this
activity.
Question #21
The human genetic material for insulin (a chemical
that helps our bodies use sugar) is inserted into
bacteria cells. The bacteria then produce human
insulin, which is harvested and given to people with
diabetes. How does genetic engineering help
humans?
A. It helps us to grow more bacteria.
B. It helps us to selectively breed for new traits.
C. It helps us to learn about about Natural
Selection.
D. It helps us to create new medicines to treat
diseases.
Answer #21
D. It helps us to create new
medicines to treat
diseases.
Question #22
Students made a model
ecosystem on their school lawn.
They dropped equal numbers of
different colored toothpicks in
the grass to represent insects.
They were given one minute to
pick up as many toothpicks as
they could. They picked up
more red and blue toothpicks
than green. How does this
model represent nature?
A. The green toothpicks
represent camouflage in
insects.
B. This model is as accurate as
real life.
C. The model is on the same
scale as nature
D. The model shows that most
insects live in grasses.
Answer #22
A. The green toothpicks
represent camouflage
in insects.