Phosphorus Cycle Definition The phosphorus cycle is the process by which phosphorus moves through the lithosphere, hydrosphere, and biosphere. Phosphorus is essential for plant and animal growth, …
Read morePhosphorus Cycle: Definition, Steps, and Human Impact
Algal Bloom Definition An algal bloom is defined as the rapid growth or accumulation of algae in aquatic ecosystems. Harmful algal blooms (HAB) are algal blooms composed …
Carbon Cycle Definition The carbon cycle is the cycle by which carbon moves through our Earth’s various systems. The carbon cycle is influenced by living …
Read moreCarbon Cycle: Definition, Steps, Example & Importance
Definition Biodiversity is a term which describes every living organism within a single ecosystem or habitat, including numbers and diversity of species and all environmental aspects such as temperature, oxygen and …
Trophic Level Definition A trophic level is a group of organisms that share the same level of function in the food chain and the same …
Threatened Species Definition A threatened species is any species which is vulnerable, endangered, or critically endangered. The International Union for Conservation of Nature, or IUCN, is commonly referenced as a leading …
Read moreThreatened Species: Definition, Criteria, and Examples
Tertiary Consumer Definition A tertiary consumer is an animal that obtains its nutrition by eating primary consumers and secondary consumers. Usually tertiary consumers are carnivorous predators, although they may also …
Read moreTertiary Consumer: Definition, Function, and Example
Symbiosis Definition A symbiosis is an evolved interaction or close living relationship between organisms from different species, usually with benefits to one or both of the …
Secondary Succession Definition One of the two main forms of ecological succession, secondary succession is the process relating to community growth or change that takes place when a …
Definition Punctuated equilibrium is a theory that states that evolution occurs primarily through short bursts of intense speciation, followed by lengthy periods of stasis or equilibrium. …
Read morePunctuated Equilibrium: Definition, Example, and Features