Change Over Time Question Preview (ID: 47023)


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A human’s arm, a cat’s front leg, a dolphin’s front flipper, and a bat’s wing
a) have similar kinds of bones.
b) are used in similar ways.
c) are very similar to insect wings and jellyfish tentacles.
d) have nothing in common

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

Fossils are commonly found in
a) loose sand.
b) granite.
c) all kinds of rock.
d) sedimentary rock.

The fact that all organisms have DNA as their genetic material is evidence that
a) all organisms undergo natural selection.
b) all organisms may have descended from a common ancestor.
c) selective breeding takes place every day.
d) genetic resistance rarely occurs.

The process by which populations slowly change over time is called
a) selective breeding.
b) adaptation.
c) speciation.
d) evolution.

Which of the following features did whales possibly inherit from a four-legged ancestor?
a) legs
b) gills
c) hip bones
d) hind limbs

A characteristic that improves an organism’s ability to survive is a(n)
a) adaptation.
b) inherited variation.
c) reproduction.
d) breeding.

Minerals seeping into an organism’s remains form
a) sediments.
b) fossils.
c) layers.
d) imprints

What do all living things get from ancestors?
a) evolution
b) offspring
c) traits
d) fossils

What can comparing different groups of animals show?
a) their identical adaptations.
b) their common ancestry.
c) their identical evolution.
d) their ability to mate with each other.

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