Chapter 10 - Biodiversity
biodiversity Correct Answer: the variety of organisms in a given area, the genetic variation within a population, the variety of species in a community, or the variety of communities in an ecosystem
extinct Correct Answer: species that no longer exist
ecosystem ...
Chapter 10 - Biodiversity
biodiversity Correct Answer: the variety of organisms in a given area, the genetic variation within a
population, the variety of species in a community, or the variety of communities in an ecosystem
extinct Correct Answer: species that no longer exist
ecosystem biodiversity Correct Answer: refers to the variety of habitats, communities, and ecological
processes within and between ecosystems
gene Correct Answer: a segment of DNA that is located in a chromosome and that codes for a specific
hereditary trait
keystone species Correct Answer: a species whose very presence contributes to an ecosystem's
diversity and whose extinction would consequently lead to the extinction of other forms of life, , not
usually abundant in a community yet exerts strong control on the structure of a community
flagship species Correct Answer: a popular, charismatic species that serves as a symbol and rallying
point to stimulate conservation awareness and action, frequently used by businesses and sports teams
as mascots
bottleneck Correct Answer: severe reduction in population size follwed by an increase in population
again; can reduce genetic diversity
hybrid Correct Answer: the offspring of two animals or plants of different species or varieties, mixed
breed
ecotourism Correct Answer: a form of tourism that supports the conservation and sustainable
development of ecologically unique areas
mass extinction Correct Answer: occurs when a large proportion of the Earth's species go extinct in a
relatively short period of time.
endangered species Correct Answer: a population of organisms which is identified to be at risk of
becoming extinct because it is either few in numbers, or threatened by changing environmental or
predation parameters throughout all or a significant part of its range, and thus under protection by
regulations or conservation measures
threatened species Correct Answer: when the population of a species is likely to become endangered in
the foreseeable future
exotic species Correct Answer: a species that is not native to a particular region
poaching Correct Answer: the illegal harvesting of fish, game, or other species
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