Species that are dependent on organic matter for food.
High End Exposure (dose) Estimate ...
heterotrophic plate count (HPC) In essence, a total count of heterotrophic microorganisms, usually expressed in number of bacteria per milliliter of sample.
Consumers such as humans and animals, and decomposers such as bacteria and fungi, that are dependent on organic matter for food.
High-Density Polyethylene (HDPE) ...
decomposers Heterotrophic organisms that break down dead protoplasm and use some of the products and release others for use by consumer organisms. decomposition The breakdown of matter by bacteria and fungi.
Secondary productivity The rate at which biomass is produced per unit area by heterotrophic organisms. Seed bank The population of viable dormant seeds that accumulates in and on soil and in sediments under water.
High End Exposure (dose) Estimate
High Intensity Discharge
Highest Dose Tested
High-Level Nuclear Waste Facility
High-Level Radioactive Waste (HLRW)
High-Risk Community ...
See also: Organism, Gas, Characteristic, Population, Condition