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complete disappearance on an organism from Earth


local extinction of a species from an area


species is close to being extirpated


organism has special adaptation that allows them to live in a narrow niche

habitat destruction

rapid change to organisms living area usually with negative effects

non-native species

species that are introduced to an area they don't normally reside in


taking too many of one species from an area through hunting

artificial selection

selecting and breeding individuals with desirable traits to produce offspring with desired traits


an exact genetic replica of an organism

artificial insemination

sperm from desired male are utilized and inserted into females

in vitro fertilization

sperm and egg are united outside of womb and then inserted into female

genetic engineering

directly altering an organisms DNA

in-situ conservation

maintaining wild organisms in their natural environment

ex-situ conservation

maintaining organisms outside of their natural environment

seed bank

genetic storehouse of plants DNA


cell division in which the nucleus divides into nuclei containing the same number of chromosomes


(genetics) cell division that produces reproductive cells in sexually reproducing organisms


a characteristic that an organism can pass on to its offspring through its genes.

dominant trait

the trait observed when at least one dominant allele for a characteristic is inherited

recessive trait

Trait that is apparent when two recessive alleles for the characteristic are inherited.

incomplete dominance

one allele is not completely dominant over the other allele


threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next


Deoxyribonucleic acid


one of two alternate forms of a gene that can have the same locus on homologous chromosomes and are responsible for alternative traits


all of the living things and places on Earth


number of one type of species in an area


all of the different types of species in one area

classification system

kingdom, phyla, order, class, family, genus, species


includes mutualism, commenalism, parasitism


an organisms role in the environment, where it live, what it eats, who it interacts with

interspecies competition

competition between species for a resource

resource partioning

sharing a resouce or location between different species


differences between species which allows for greater success

natural selection

survival of the fittest, the "best" species survives to pass on its genes and reproduce successfully

heritable trait

acquired through your parents genes

non-heritable trait

aquired in your lifetime, a learned skill

continuous variation

a range of possibilities

discrete variation

either/ have it or you don't...

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