WA #2 Flashcards
variety of life in an area
Biodiversity
3 types of Biodiversity
Genetic diversity, Species diversity, Ecosystem diversity
variety of genes or inheritable characteristics
Genetic diversity
number of different species and the relative abundance of each species
Species diversity
variety of ecosystems
Ecosystem diversity
discipline of biology concerned w/ identifying, naming, and classifying species based on relationships
Taxonomy
developed the first widely accepted system of biological classification
Aristotle
broadened Aristotle’s system of classification
Carolus Linnaeus
Carolus Linnaeus’ method of classification
Binomial Nomenclature
Acronym for 8 main taxonomy ranks
Dear King Philip Came Over For Good Soup
broadest of all taxa
Domain
composed of related phyla or divisions
Kingdom
contains related classes
Phylum
contains related orders
Class
contains related families
Order
consisting of similar, related genera
Family
a group of species that are closely related and share a common ancestor
Genus
lowest taxonomic rank and the most basic unit of classification
Species
cumulative changes in groups of organisms through time
Evolution
was a British naturalist who proposed the theory of evolution
Charles Darwin
“descent with modification”
Charles’s meaning of Evolution
to survey the coast of South America, 5 year voyage
Darwin on the HMS Beagle
a mechanism of evolution. “survival of the fittest”
Natural Selection
a remnant, impression, or trace of an organism
Fossil
anatomically similar structures inherited from a common ancestor
Homologous structures
structures that have no function, residual parts from a past ancestor
Vestigial structures
features of a different species that are similar in function but not necessarily in structure
Analogous structures
an early, pre-birth stage of an organism’s development
Embryo
dying out or extermination of a species
Extinction
High risk of extinction
Endangered
High risk of endangerment
Threatened
Elimination of the conditions necessary for animals and plants to survive
Habitat Destruction
A process during which a large expanse of habitat is transformed into a number of patches of a smaller total area
Habitat Fragmentation
introduction of harmful materials into the environment
Pollution
removal of a species faster than it can repopulate
Over Exploitation
any non-native species that is significantly modified or disrupts the ecosystem it colonizes
Invasive
long-term changes in the Earth’s temperature and weather patterns caused by human activities
Climate Change
clearing or destroying of trees
Deforestation
