BIOLOGY-TEXT
5th Edition
ISBN: 9781260169621
Author: BROOKER
Publisher: MCG
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Chapter 60, Problem 9TY
Over time, dark forms of the peppered moth (Biston betularia) became more common in polluted environments because predators were less able to detect them on trees darkened by soot. These moths are regarded by many as a(n)
- a. keystone species.
- b. indicator species.
- c. umbrella species.
- d. flagship species.
- e. endangered species.
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Conservation hotspots are best described as
a. areas with large numbers of endemic species, in many of which species are disappearing rapidly.
b. areas where people are particularly active supporters of biological diversity.
c. islands that are experiencing high rates of extinction.
d. areas where native species are being replaced with introduced species.
A species that has an immediate threat to extinction is said to be:a. threatened. c. alien.b. endangered. d. extinct.
Which of the following best describes a keystone species?
a. An organism, whose introduction causes or is likely to cause environmental harm
b. An organism, who if removed, the entire ecosystem changes.
c. Can signal a change in the biological condition of a particular ecosystem and diagnose the health of that ecosystem
d. Can indirectly protect several other species in the same habitat
Chapter 60 Solutions
BIOLOGY-TEXT
Ch. 60.2 - Core Skill: Modeling The goal of this modeling...Ch. 60.2 - Prob. 1CCCh. 60.2 - Prob. 1EQCh. 60.2 - Prob. 2EQCh. 60.2 - Prob. 3EQCh. 60.2 - Prob. 4EQCh. 60.4 - Prob. 1CCCh. 60.4 - Prob. 2CCCh. 60 - Prob. 1TYCh. 60 - Prob. 2TY
Ch. 60 - The idea that humans have an innate attachment to...Ch. 60 - The research conducted by Tilman and colleagues...Ch. 60 - Prob. 5TYCh. 60 - Prob. 6TYCh. 60 - Prob. 7TYCh. 60 - Prob. 8TYCh. 60 - Over time, dark forms of the peppered moth (Biston...Ch. 60 - Prob. 10TYCh. 60 - Prob. 1CQCh. 60 - Prob. 2CQCh. 60 - Prob. 3CQCh. 60 - Prob. 1COQCh. 60 - Prob. 2COQ
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