Chapter 3.2 Flashcards
What makes Sea Otters a keystone species?
a. It eats invasive species of kelp.
b. It keeps destructive Sea Lions out of the area.
c. It eats Sea Urchins, which can destroy kelp forests.
d. It was introduced from the coast of Florida and placed in Oregon.
c. It eats Sea Urchins, which can destroy kelp forests.
The variety of life on Earth; it includes species, genetic, and ecological diversity
Biodiversity
Essential ecological processes that make life on Earth possible is known as
Ecosystem Services
An object’s or species’ worth based on its usefulness to humans is known as
Instrumental Values
An object’s or species’ worth, based on mere existence; is has an inherent right to exist is known as
Intrinsic Value
The heritable variation among individuals of a single population or within a species as a whole is known as
Genetic Diversity
The source of variation inbreeding depression is known as
genetic diversity
How do we measure biodiversity?
Count what we find and estimate
The variety of species, including how many are present (richness) and their abundance relative to each other (evenness) is known as
Species Diversity
The variety within an ecosystem’s structure, including many communities, habitats, niches, and trophic levels is known as
Ecological Diversity
What describes a species that is native to a particular area and is not naturally found elsewhere is known as
Endemic species
An area that contains a large number of endangered endemic species is known as
Biodiversity Hotspots
Species at high risk of becoming extinct is known as
Endangered Species
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