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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
are used in similar ways.
C
have similar kinds of bones.
D
have nothing in common
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
older rock layers
B
newer rock layers
C
All rock layers would contain the same fossils.
D
None of the fossils would resemb
3) Fossils are commonly found in
A
sedimentary rock.
B
loose sand.
C
all kinds of rock.
D
granite.
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
genetic resistance rarely occurs.
C
all organisms undergo natural selection.
D
selective breeding takes place every day.
5) The process by which populations slowly change over time is called
A
selective breeding.
B
adaptation.
C
evolution.
D
speciation.
6) Which of the following features did whales possibly inherit from a four-legged ancestor?
A
hip bones
B
hind limbs
C
legs
D
gills
7) A characteristic that improves an organism’s ability to survive is a(n)
A
breeding.
B
adaptation.
C
reproduction.
D
inherited variation.
8) Minerals seeping into an organism’s remains form
A
sediments.
B
layers.
C
imprints
D
fossils.
9) What do all living things get from ancestors?
A
offspring
B
fossils
C
evolution
D
traits
10) What can comparing different groups of animals show?
A
their identical adaptations.
B
their common ancestry.
C
their ability to mate with each other.
D
their identical evolution.
*select an answer for all questions
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