- Industry: Government
- Number of terms: 30456
- Number of blossaries: 0
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
The internal region of a sponge, including the choanocyte chambers.
Industry:Natural environment
The relative proportion of individuals in each age group in a population.
Industry:Natural environment
A condition when the body temperature is colder than normal (37 degrees C/98.6 degrees F in humans).
Industry:Natural environment
A group of populations, usually of the same species, which exist at the same time but in different places. The dispersed population can replenish one another with migrants.
Industry:Natural environment
A muscular contraction in which tension increases while the length of the muscle remains constant.
Industry:Natural environment
A sense organ on upper side of head in many branchiopods; photoreceptor-like sensory cells in the nuchal region (posterodorsal region of the head) of some cephalopods; paired chemosensory structures in some annelids.
Industry:Natural environment
Anaerobic bacteria in soil or water that use the nitrate ion as a substitute for molecular oxygen during their metabolism. The nitrate is reduced to nitrogen gas (N2), which is lost to the environment during the process.
Industry:Natural environment
