- A
species (pl.:
species) is a po****tion of
organisms in
which any two
individuals of the
appropriate ****es or
mating types can
produce fertile offspring...
- On the
Origin of
Species (or, more completely, On the
Origin of
Species by
Means of
Natural Selection, or the
Preservation of
Favoured Races in the Struggle...
- An
endangered species is a
species that is very
likely to
become extinct in the near ****ure,
either worldwide or in a
particular political jurisdiction...
- An
invasive species is an
introduced species that
harms its new environment.
Invasive species adversely affect habitats and bioregions,
causing ecological...
- system"), also
called binary nomenclature, is a
formal system of
naming species of
living things by
giving each a name
composed of two parts, both of which...
- A rare
species is a
group of
organisms that are very uncommon, scarce, or
infrequently encountered. This
designation may be
applied to
either a plant...
- A least-concern
species is a
species that has been
evaluated and
categorized by the
International Union for
Conservation of
Nature (IUCN) as not being...
-
Species affinis (commonly
abbreviated to: sp., aff., or affin.) is
taxonomic terminology in
zoology and botany. In open
nomenclature it
indicates that...
-
introduced species,
alien species,
exotic species,
adventive species,
immigrant species,
foreign species, non-indigenous
species, or non-native
species is a...
- A
keystone species is a
species that has a
disproportionately large effect on its
natural environment relative to its abundance. The
concept was introduced...