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Biodiversity

Across
the action or process of adapting or being adapted.
is the termination of an organism or of a group of organisms
is one of the few dozens of US environmental laws passed in the 1970s,
is an organism whose presence, absence or abundance reflects a specific environmental condition
is the total number of genetic characteristics in the genetic makeup of a species.
Down
any species which is likely to become an endangered species within the foreseeable future
a species of animal or plant that is seriously at risk of extinction
describes how an organism or population responds to the distribution of resources and competitors
is a species living outside its native distributional range
any genetic change in a population that is inherited over several generations.
a large naturally occurring community of flora and fauna occupying a major habitat, e.g., forest or tundra.
is the number of different species that are represented in a given community
the variety of life in the world or in a particular habitat or ecosystem.
A species that has been observed in the form of a naturally occurring and self-sustaining population in historical times.
species is able to thrive in a wide variety of environmental conditions and can make use of a variety of different resources
are plants and animals that exist only in one geographic region.
the natural home or environment of an animal, plant, or other organism.