Front

Net primary productivity

Back

The organic materials that remain after photosynthetic organisms in the ecosystem have used some of these compounds for their cellular energy needs (cellular respiration).

Front

Commensalism

Back

A type of relationship where one organism benefits while the other is unaffected, as seen with the cattle egret and herds of cattle.

Front

Taiga

Back

A biome characterized by cold environments and moderate rainfall, where species like certain trees are adapted.

Front

Rain forest soil

Back

Thin and nutrient poor, despite the lush vegetation above.

Front

Energy loss in energy pyramids

Back

90% of energy at each level is lost as heat or used by the organism for survival.

Front

Gross primary productivity

Back

The total amount of organic material produced by photosynthetic organisms before any is used for respiration.

Front

Secondary productivity

Back

The generation of biomass by heterotrophic organisms (consumers) in an ecosystem.

Front

Symbiotic relationships

Back

Interactions between species that live in close physical proximity, which can be mutualistic, commensal, or parasitic.

Front

Deciduous forest

Back

A biome characterized by trees that lose their leaves seasonally, typically found in temperate regions.

Front

Tropical forest

Back

A biome known for high biodiversity and dense vegetation, typically found near the equator.