Concept explainers
To determine:
Definition of term background extinction, mass extinction, natural
Explanation of Solution
Background extinction: It is the normal rate of extinction, which occurs naturally as a part of evolution process. It is the rate of extinction, which is not forced by any other causes.
Mass extinction: It is defined as a major loss of many species in a very short period of time. This result in loss of approximately 3/4th of the entire biodiversity.
Natural resources: It can be defined as the supplies and services, which provide to the different animals by nature. These resources can be utilized by other organisms for survival and humans may also utilize some natural resources for economic benefit.
Habitat fragmentation: It is defined as the division of a large area of habitat into smaller patches resulting in the distribution of the biodiversity into patches.
Edge effect: It is defined as the changes that result in a population due to mixing of different habitats. This increase the diversity among species.
Biological magnification: It is defined as the accumulation of the toxins in body of an organism, which become more concentrated at each trophic level.
Eutrophication: It is defined as a gradual increase in the concentration of minerals and elements such as nitrogen and phosphorus in an old ecosystem.
Introduced species: Introduced species or the invasive species are the organism, which are nonnative to the habitat they are present in and compete for the natural resources of native species in the new ecosystem.
Chapter 5 Solutions
Biology Science Notebook
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