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Unit 2B: Adaptation And Change
Test Description: Review for Unit 2B
Instructions: Answer all questions to get your test result.
1) How much time might it take for a species to develop genetic diversity?
A
Never
B
Right away
C
Over a short period of time
D
Over a long period of time
2) When an environment changes, a species can____ to survive.
A
Adapt
B
Wait for the environment to change back
C
Hibernate
D
Migrate
3) ______ is a change that helps a species to survive.
A
Rapid change
B
Gradual change
C
Endangerment
D
Adaptation
4) Which of these environmental changes happens the fastest?
A
Tornado
B
Decomposition of a frog
C
The ocean recovering after an oil spill
D
Growth of a population
5) Which of these environmental changes happens the most gradually?
A
Deforestation
B
Flooding
C
Decomposition of a tree
D
An oil spill
6) What might cause a species to go extinct?
A
Behavioral adaptations
B
The ability to meet the challenges of life
C
Not being able to meet the challenges of life
D
Structural adaptations
7) Which of these is a behavioral adaptation of a bird?
A
Sharp beak
B
Being able to fly
C
Colorful feathers
D
Flying south in the winter to find more food
8) Which of these is an example of a structural adaptation?
A
A frog burrows underground during a drought
B
Colorful feathers to help a bird find a mate
C
A lioness teaches her cub how to hunt
D
Hibernating during the winter
9) How might farming affect the environment?
A
Higher temperatures in the air
B
More habitats for animals
C
Soil erosion
D
More food available for wildlife
10) How might an increase in carbon dioxide affect the ecosystem?
A
Plants would begin to grow at a faster rate
B
There would be no change
C
The temperatures would fall and become colder
D
The temperatures would increase and become warmer
*select an answer for all questions
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