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Unit 3 Review
Test Description: Semester review of biodiversity and succession
Instructions: Answer all questions to get your test result.
1) Which adaptation would most iikely be evident in an animal living in a tundra biome?
A
long neck to reach food in high branches
B
long legs to escape predators
C
thick fat layer that develops quickly
D
large wide ears with thin tissue
2) Which of these BEST explains why forest trees are the final stage in succession?
A
trees are very large and use available nutrients
B
trees have leaves that use all the available air
C
trees have deep roots and soak up groundwater
D
trees take longer to mature and would block sunlight for small plants
3) Which of the following is most likely to have a positive effect on biodiversity?
A
replanting trees and other plants in a park
B
pouring oil onto the ground
C
increasing people's awareness of pollution
D
recycling glass, aluminum and plastic
4) Which of the following contributes to the stability in an ecosystem?
A
extinction of a population from the ecosystem
B
removal of many populations of organisms
C
increase in biodiversity
D
reduction in biodiversity
5) A hurricane hits a coastal prairie and destroys the habitat. Years later there is an appearance of small plants. What does this describe?
A
biodiversity
B
microhabitat
C
secondary succession
D
primary succession
6) Which of these is most sustainable?
A
an area near a volcano covered with igneous rock
B
a grassland with small plants and grass
C
a field with no plants, only soil
D
a forest with trees, grasses, plants, and flowers
7) What is the relationship between ecological succession and equilibrium in an ecosystem?
A
there is no relationship between the two
B
succession helps maintain balance
C
succession prevents balance in ecosystems
D
they are the same thing
8) All of the following are examples of events in nature that can lead to secondary succession except
A
hurricane
B
formation of a swamp or lake
C
earthquake
D
flood
9) Which is an example of primary succession?
A
a field transforming into a forest
B
lichen growing on igneous rock near a volcano
C
an area recovering after a hurricane
D
regrowth of a forest after a fire
10) Which of the following statements about biodiversity is true?
A
the amount of biodiversity does not affect an ecosystem
B
more biodiversity means less species in an ecosystem
C
more biodiversity means a better chance for sustainability
D
more biodiversity means less chance for sustainability
*select an answer for all questions
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