Biology (Mader), 10th Edition

Chapter 47: Conservation of Biodiversity

Pre-Test

1
Conservation biology is concerned with _____.
A)developing scientific concepts about the nature and evolutionary origin of biodiversity
B)preserving and managing ecosystems
C)All of these
2
Which of the following ethical principles is supported by conservation biology?
A)Extinctions due to human actions are acceptable.
B)Ecosystems should be simplified so they are more manageable.
C)Biodiversity is desirable for the biosphere and humans.
D)All of these
3
It is estimated that in the next 20-50 years, _____ of all species now living will become extinct unless action is taken.
A)1%
B)10-20%
C)50-60%
D)90-95%
4
The most prevalent group of organisms of the species which have been described so far is _____.
A)primates
B)flowering plants
C)fish
D)insects
5
Biodiversity is affected by _____ diversity.
A)landscape
B)genetic
C)community
D)All of these
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