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St 4 Ob 2 A,b,c,d
Test Description: Test review Utah old core
Instructions: Answer all questions to get your test result.
1) How do the large, flat teeth of a cow help it survive?
A
flat teeth rarely decay
B
it can fight off predators
C
it can grind grasses better
D
it can eat every kind of food
2) What adaptive advantage do the stripes on a tiger provide?
A
camouflage in tall grass
B
corrects for excessive sunlight
C
protection from the cold
D
improvements in eyesight
3) Why do wolves have large sharp teeth?
A
to help them dig burrows to live in
B
to help them attract a mate
C
to help them kill their prey
D
to help them care for their offspring
4) Human beings walk upright. What adaptive advantage does this provide?
A
it allows us to use our hands
B
we see in more colors than other animals
C
it gives us the ability to hear better
D
we run faster than other animals
5) Which animal has traits adapted for a water environment but not a land environment?
A
spider
B
cat
C
fish
D
lizard
6) Why might the fern be found in a rainforest but not the desert?
A
There is not enough water
B
There are too many other plants
C
It cannot travel that far
D
It cannot protect itself in the desert
7) What characteristic would you expect insects to have?
A
high adaptability
B
low reproductive rate
C
few different types
D
the ability to fly
8) Dairy cows now produce more milk per cow that ever before. Why?
A
people have changed the genetic make-up of cows
B
there are more cows now than ever before
C
cows are always changing in nature
D
cows live in feedlots without grass
9) When a genetic trait allows a group of animals to be more likely to survive and reproduce, what happens to that trait?
A
it becomes extinct
B
it cannot be predicted, genetics involves chance
C
it becomes the only trait available
D
it becomes more common
10) 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
artificially produced foods are better for people than natural ones
D
they are accidents that scientists cannot prevent from happening
11) Why are the bones of bird hollow?
A
to give the feathers room to grow
B
to allow the bird to lay eggs
C
to make the bird lighter when flying
D
to allow for more blood flow
12) Grasses are very difficult to pull away from the ground. How do their root systems benefit grasses?
A
they make food for the plant
B
they make it impossible for the plant to die
C
they firmly anchor the plant to the ground
D
the absorb water from the soil
13) Why do dogs grows thicker fur in the winter and shed it in the summer?
A
They used to build their dens out of hair they shed
B
They are better able to survive different weather patterns
C
They have to replace the hair because it becomes brittle.
D
They grow hair to get rid of extra food they eat in the winter.
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