- Industry: Biology
- Number of terms: 15386
- Number of blossaries: 0
- Company Profile:
Terrapsychology is a word coined by Craig Chalquist to describe deep, systematic, trans-empirical approaches to encountering the presence, soul, or "voice" of places and things: what the ancients knew as their resident genius loci or indwelling spirit. This perspective emerged from sustained ...
A mutually beneficial relationship between two species, like the Hawaiian squid and the luminous bacteria it carries in its stomach. The bacteria gets a home, and the squid is camouflaged by the light.
Industry:Biology
A 1-5 scale of soil loss tolerance: the average maximum soil loss, in tons per acre per year, that still allows the current production level.
Industry:Biology
A clay produced by weathered feldspar. Common in clays everywhere, including China, where its name comes from. Used to make paint, rubber, ceramic, plastics, and the glossy stuff they put on magazines.
Industry:Biology
An atom or group of atoms that carries either a positive (cation) or negative (anion) electrical charge because of having lost or gained an electron. Ions play a key role in many biochemical reactions.
Industry:Biology
A cell that contains only one set of chromosomes. Example: gametes (sex cells). By contrast, most of the cells that make up the body are diploid: they contain chromosomes from both biological parents.
Industry:Biology
How a single gene can express itself in several seemingly unrelated manifestations. Mutations often do this. (To use the example of Richard Dawkins, genes function not as blueprints, but as recipes. )
Industry:Biology
Formerly classified as fungi because of their filaments, the actinomycetales include many types of soil bacteria. They produce antibiotics, enzymes, and vitamins, although a few are harmful to humans.
Industry:Biology
The tendency of a population's growth rate to depend on its size, with an increase in population density corresponding to a decrease in growth. This self-regulating dynamic helps prevent extinction.
Industry:Biology
A type of simple dry fruit that does not open at maturity (technically called a caryopsis). See Cereal. Global warming is believed to have cut world grain production by 93 million tons in 2003 alone.
Industry:Biology
Carbon movement; movement of organic compounds through an ecosystem. Specifically, the relationship between carbon dioxide absorbed by green plants and carbon dioxide respirated by various organisms.
Industry:Biology
