10 Terms
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General
General nature or nature terms.
Industry: Natural environment
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General
photic zone
Biology; General
The layer of the ocean that is penetrated by sunlight; extends to a depth of about 200 meters.
polysaccharides
Biology; General
Long chains of monosaccharide units bonded together; e.g., glycogen, starch, and cellulose.
population
Biology; General
A group of individuals of the same species living in the same area at the same time and sharing a common gene pool. A group of potentially interbreeding organisms in a geographic area.
photoperiodism
Biology; General
The ability of certain plants to sense the relative amounts of light and dark in a 24-hour period; controls the onset of flowering in many plants.
population dynamics
Biology; General
The study of the factors that affect the growth, stability, and decline of populations, as well as the interactions of those factors.
portal system
Biology; General
An arrangement in which capillaries drain into a vein that opens into another capillary network.
