BSCS Biology: A Molecular Approach

Chapter 19: Changes in Species

Multiple Lines of Evidence

1.
The study of fossils is known as ____.
A)evolution
B)geology
C)paleontology
D)fossilization
2.
Why do extinctions occur much more often in modern times than they did in the past?
A)There are more organisms now, producing a corresponding increase in the extinction rate.
B)A huge increase in human population has affected the environment.
C)Animal species have become better at extinction, with years of practice.
D)All biological processes, not just extinction, have sped up in modern times.
3.
The flared, saddleback shape of this tortoise's shell is an adaptation that allows it to ____.
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A)see high-flying predators
B)eat edible cactus leaves that are high up
C)attack with a downward striking motion
D)withdraw its head more rapidly
4.
What is "artificial selection?"
A)natural selection that takes place in the dark
B)controlled genetic experiments, such as breeding
C)the survival of artists over other individuals
D)the survival of the most awkward or unnatural genetic modification
5.
The growing resistance of bacterial strains to ____ is an example of the role of evolution in human disease.
A)extinction
B)natural selection
C)evolution
D)antibiotics
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