Glencoe Science Level Blue

Chapter 2: Traits and How They Change

Section 3 Self-Check Quiz-Eng.

1
Some plant species in the forests of Yellowstone National Park have seeds that can germinate only after __________.
A)a fire
B)a flood
C)a full moon
D)an earthquake
2
What environmental factors change as you travel up a mountain's slopes?
A)Temperature increases and wind decreases.
B)Temperature decreases and wind increases.
C)Temperature and wind increase.
D)Temperature and wind decrease.
3
Which one of the following is a living factor in the environment that affects the species present?
A)floods
B)predators
C)temperature
D)fire
4
When the last individual of a species dies, __________ occurs.
A)natural selection
B)extinction
C)mutation
D)selective breeding
5
__________ is the change in the genetics of a species over time.
A)Natural selection
B)Heredity
C)Evolution
D)Mutation
6
According to the theory of natural selection, organisms that are better adapted to an environment __________ than organisms that are not.
A)grow larger
B)survive and reproduce at a greater rate
C)run faster
D)are stronger
7
__________ is a change to DNA that forms new alleles.
A)Selective breeding
B)Evolution
C)A mutation
D)Natural selection
8
The many species of finches and tortoises Darwin observed on the Galapagos Islands are an example of __________.
A)selective breeding
B)extinction
C)phenotype variability
D)adaptive radiation
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