Glencoe Science Level Green

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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