Transcript Slide 1

A student has brown hair. This
is a description of a(n)
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A.
B.
C.
D.
cell system
inherited trait
recessive trait
acquired trait
Which characteristic would you
expect a puppy to acquire from
its owners?
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A.
B.
C.
D.
number of legs
eye and hair color
ability to wag its tail
to come when called
What type of reproduction has
occurred when an organism is
produced from two parents?
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A.
B.
C.
D.
Nonsexual
Sexual
Unisexual
Asexual
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.
A tangelo is a cross between
a tangerine and a grapefruit.
Why do plant scientists make
genetic crosses like this?
• A. the new offspring may have desirable traits
• B. we need to keep discovering new fruits to
stay healthy
• C. they are accidents that scientists cannot
prevent from happening
• D. artificially produced foods are better for
people than natural ones
Which animal has traits adapted
for a water environment but not
a land environment?
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A.
B.
C.
D.
cat
spider
lizard
fish
A piece of a geranium plant is cut and
placed it in a jar of water in the window.
Several weeks later the piece has
grown into a new plant. Which of the
following is true about the genetic
relationship between the first plant and
the new one?
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A.
B.
C.
D.
The two plants are different genetically.
The two plants are slightly different genetically.
The two plants are genetically identical.
There is no way to know the genetic relationship.
A flower is a structure that
allows which type of
reproduction for the plant?
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A.
B.
C.
D.
Nonsexual
Sexual
Unisexual
Asexual
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.
Using the table below that shows the number of
each organism that live in the rainforest and a
desert, which organism would be most likely to
survive if placed in another ecosystem?
Organism
Fern
Snake
Mouse
Monkey
Insects
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A.
B.
C.
D.
fern
monkey
insect
mouse
Rainforest
many
some
none
many
many
Desert
none
some
many
none
many
Which structural trait do nearly
all children have in common
with their parents?
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A.
B.
C.
D.
same number of legs
same types of hobbies
same intelligence
same eye and hair color
A baby horse will have the most
structural traits in common with
which animal?
• A. a zebra
• B. a horse
• C. a mule
• D. a donkey
Which of the following is a
structural trait of all living
things?
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A.
B.
C.
D.
being made of cells
having two legs
having hair
having two types of teeth
How do the large, flat teeth of a
cow help it survive?
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A.
B.
C.
D.
it can fight off predators
it can eat every kind of food
flat teeth rarely decay
it can grind grasses better
What adaptive advantage do
the stripes on a tiger provide?
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A.
B.
C.
D.
protection from the cold
camoflage in tall grass
improvements in eyesight
corrects for excessive sunlight
Why do wolves have large
sharp teeth?
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A.
B.
C.
D.
to help them dig burrows to live in
to help them kill their prey
to help them care for their offspring
to help them attract a mate
Human beings walk upright.
What adaptive advantage does
this provide?
• A. we run faster than other animals
• B. we see in more colors than other
animals
• C. it allows us to use our hands
• D. it gives us the ability to hear better
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. The time is unrealistic. Instead of a few minutes,
considerable time lapses for organisms to adapt.
• B. The process that is modeled cannot be observed and
counted.
• C. Different lifelike conditions can be easily brought into the
model.
• D. The toothpick color cannot accurately reflect live
organisms.
When a genetic trait allows a
group of animals to be more
likely to survive and reproduce,
what happens to that trait?
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A. it becomes extinct
B. it becomes more common
C. it becomes the only trait available
D. it cannot be predicted, genetics
involves chance
Jose plays the piano extremely
well but his parents do not play
at all. What type of trait is piano
playing?
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A.
B.
C.
D.
inherited
musical
acquired
genetic
Using the table below that shows the number of
each organism that live in the rainforest and a
desert, what characteristic would you expect
insects to have?
Organism
Fern
Snake
Mouse
Monkey
Insects
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A.
B.
C.
D.
Rainforest
many
some
none
many
many
high adaptability
low reproductive rate
a few different kinds
the ability to fly
Desert
none
some
many
none
many
Dairy cows now produce more
milk per cow that ever before.
Why?
• A. people have changed the genetic
make-up of cows
• B. cows are always changing in nature
• C. cows live in feedlots without grass
• D. there are more cows now than ever
before
What advantage do the
butterflies in picture A have?
A
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A.
B.
C.
D.
B
They are brightly colored.
They have large wings
They blend with the background
They can eat many different kinds of food.
Using the table below that shows the number of
each organism that live in the rainforest and a
desert, why might the fern be found in a rainforest
but not the desert?
Organism
Fern
Snake
Mouse
Monkey
Insects
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A.
B.
C.
D.
Rainforest
many
some
none
many
many
It cannot travel that far
It cannot protect itself in the desert
There are too many other plants
There is not enough water
Desert
none
some
many
none
many
What type of reproduction has
occurred when an organism is
produced from only one parent?
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A.
B.
C.
D.
Nonsexual
Sexual
Unisexual
Asexual
A plant that grows a new plant
from a piece of the stem has
which type of reproduction?
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A.
B.
C.
D.
Nonsexual
Sexual
Unisexual
Asexual
Why are the bones of bird
hollow?
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B.
C.
D.
to allow for more blood flow
to make the bird lighter when flying
to allow the bird to lay eggs
to give the feathers room to grow
Grasses are very difficult to pull
away from the ground. How do
their root systems benefit
grasses?
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B.
C.
D.
the absorb water from the soil
they make food for the plant
they firmly anchor the plant to the ground
they make it impossible for the plant to die
Which type of reproduction
results in offspring that are most
different from the parent
organisms?
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A.
B.
C.
D.
Nonsexual
Sexual
Unisexual
Asexual
Why do dogs grows thicker fur
in the winter and shed it in the
summer?
• A. They are better able to survive different
weather patterns
• B. They grow hair to get rid of extra food
they eat in the winter.
• C. They have to replace the hair because it
becomes brittle.
• D. They used to build their dens out of hair
they shed.
Sickle Cell Anemia is a blood disease
caused by a person's genetic
information. How does knowing that
this disease is genetic help people?
• A. Genetic diseases are inherited traits, so
treatment will be different than treatment for
diseases people can catch.
• B. Genetic diseases are inherited traits, so we can
learn what kind of germs carry Sickle Cell Anemia.
• C. Genetic diseases are acquired traits, so we can
learn how to avoid catching Sickle Cell Anemia.
• D. Genetic diseases are acquired traits, so people
with the disease can change their diet and lifestyle to
get better.
Pat's mom is a great cook. People keep
telling Pat that she will also be a great
cook one day because she will "get it from
her mom." What kind of assumption are
people making when they say this?
• A. True - cooking ability is an inherited trait
• B. True - cooking ability is an acquired trait
• C. Inference - cooking ability is an inherited
trait
• D. Inference - cooking ability is an acquired
trait
Both parents of a Siamese cat
have green eyes. Their
offspring also have green eyes.
This would be an example of
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B.
C.
D.
an acquired trait
an inherited trait
a learned trait
a found trait
Which of the following is an
example of an organism
reproduced asexually?
• A. A sea star being cut in half and each half
regenerating a full sea star
• B. Female salmon laying eggs on gravel
streambeds to be fertilized by a male
• C. Pollen blown by wind from one flower to
another resulting in a seed
• D. Pollen carried by an insect from one
flower to another
Which of the following is an
organism that usually
reproduces asexually?
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A.
B.
C.
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E.
ant
bacterium
clam
dolphin
earthworm
Which of the following
organisms reproduce
asexually?
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A.
B.
C.
D.
rats
mosquitoes
bacteria
salmon
Which is the best example of
how science and improvements
in technology affect life?
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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.
THANK YOU EVERYONE
GREAT JOB