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Biodiversity
Test Description: Review of Biodiversity,
Instructions: Answer all questions to get your test result.
1) Kangaroo rats do not drink water. They get most of the water they drink from the food they consume. They can be be found in the
A
desert
B
tundra
C
rainforest
D
savanna
2) The land ecosystem characterized by large amounts of rainfall and warm temperatures year round is a
A
tropical rain forest
B
temperate deciduous forest
C
taiga
D
alpine tundra
3) Which of the following human activities have helped to save the biodiversity of an ecosystem?
A
draining water from wetlands
B
setting up wildlife refuges and protected parks
C
introducing new species to ecosystems
D
removing predators from an ecosystem
4) In an ocean ecosystem, the greatest diversity of organisms is found
A
at the surface
B
near the bottom
C
in a coral reef
D
near a shoreline
5) In which biome is there the greatest biodiversity?
A
grassland
B
rainforest
C
desert
D
tundra
6) Overpopulation of a species occurs when
A
there are more organisms than an areas's resources can support.
B
there is too much competition among members of the species
C
there are more females than males of a species
D
there are more males than females of a species
7) The black rhinoceros is close to extinction because they are hunted for their skin, fur and horns that are used for commercial purposes. What is the effect of the over-hunting of these animals on the ecosystem?
A
The organisms on which these animals prey will decrease in number.
B
Competition will increase among the animals.
C
The balance among different species of the ecosystem will be disturbed.
D
The habitat where these organisms live will be destroyed.
8) What is the effect of increased biodiversity in an ecosystem?
A
The ecosystem will remain unchanged
B
The ecosystem will become less stable
C
The ecosystem will collapse.
D
The ecosystem will become more stable
9) Threats to biodiversity include which of the following?
A
pollution
B
deforestation
C
invasive species
D
all of the above
10) Biodiversity means
A
non-living things in an ecosystem
B
a variety of life in an ecosystem
C
to change the life in an ecosystem
D
to move away from an ecosystem
*select an answer for all questions
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