Chapter 3: Individuals, Populations, and Communities in Ecosystems Flashcards
Population
A group of individuals of the same species living in the same area at the same time.
Species
Organisms that can breed with one another and produce fertile offspring.
Community
A community consists of all the organisms in all the interacting populations in a given area.
Ecosystem
Includes all of the non-living parts of the environment in a particular area and all the living organisms, as well as the interactions among them.
Taxonomy
The practice of classifying living things.
Kingdom
The second highest taxonomic classification of living things (under domain). The six kingdoms recognized in biology are Archaea, Bacteria, Protista, Fungi, Plantae, and Animalia.
Domain
The highest level of taxonomic classification. The three domains are Archaea, Bacteria, and Eukarya.
Binomial Nomenclature
A system in which a two-word name (genus plus species) is used to identify an organism.
Dichotomous Key
Identification key that uses a series of paired comparisons to sort organisms into smaller and smaller groups.
Climate
Refers to the average weather conditions in a particular region over a period of time.
Biome
A large ecosystem or groups of ecosystems that have certain abiotic and biotic features. Biomes are the different “regions” of habitats.
Habitat
A place or area with a specific set of abiotic and biotic characteristics.
Range
The geographical area or region where a population or species is found.
Ecological Niche
The role an organism has on a community; including what it needs to survive and how it effects other organisms.
Biodiversity
The variety of species in an area and there adaptivity to the environment.
