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Change Over Time
Test Description: 6.1
Instructions: Answer all questions to get your test result.
1) A human’s arm, a cat’s front leg, a dolphin’s front flipper, and a bat’s wing
A
are very similar to insect wings and jellyfish tentacles.
B
have nothing in common
C
are used in similar ways.
D
have similar kinds of bones.
2) A scientist is studying fossils from different layers of sedimentary rock. From which rock layer would the fossils tend to resemble present-day organisms most closely?
A
newer rock layers
B
None of the fossils would resemb
C
older rock layers
D
All rock layers would contain the same fossils.
3) Fossils are commonly found in
A
granite.
B
sedimentary rock.
C
loose sand.
D
all kinds of rock.
4) The fact that all organisms have DNA as their genetic material is evidence that
A
all organisms may have descended from a common ancestor.
B
selective breeding takes place every day.
C
all organisms undergo natural selection.
D
genetic resistance rarely occurs.
5) The process by which populations slowly change over time is called
A
speciation.
B
adaptation.
C
selective breeding.
D
evolution.
6) Which of the following features did whales possibly inherit from a four-legged ancestor?
A
legs
B
hip bones
C
gills
D
hind limbs
7) A characteristic that improves an organism’s ability to survive is a(n)
A
reproduction.
B
inherited variation.
C
adaptation.
D
breeding.
8) Minerals seeping into an organism’s remains form
A
fossils.
B
sediments.
C
imprints
D
layers.
9) What do all living things get from ancestors?
A
traits
B
evolution
C
fossils
D
offspring
10) What can comparing different groups of animals show?
A
their identical evolution.
B
their identical adaptations.
C
their ability to mate with each other.
D
their common ancestry.
*select an answer for all questions
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