20 Terms
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Coral reefs
Coral reefs are structures formed from the calcium carbonate secretions of corals. They are colonies of tiny animals in marine areas containing few nutrients.
Industry: Natural environment
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Coral reefs
Background level
Natural environment; Coral reefs
The concentration or level of a substance or other factor in an environment that is not the result of human activities, e.g., background levels of chemicals, light, sound, etc.
Cytoskeleton
Natural environment; Coral reefs
The network of microtubules, microfilaments, and larger filaments that provides a eukaryotic cell with its structural support, shape, and its capacity to move and arrange its organelles within the ...
Radioactivity
Natural environment; Coral reefs
The spontaneous decay of the nucleus of an element. It involves the change in the number of protons in the nucleus and therefore creates an atom of a new element.
Topodeme
Natural environment; Coral reefs
A deme (a local interbreeding population) occupying any specified geographical area.
Macromolecule
Natural environment; Coral reefs
A large polymer, such as DNA, RNA, protein, lipid or polysaccharide, made up of thousands of atoms.
Alpha particle
Natural environment; Coral reefs
A particle emitted from the nucleus of an atom, containing two protons and two neutrons, identical to the nucleus (without the electrons) of a helium atom.
Dive computer
Natural environment; Coral reefs
A small electronic sensor and calculator, carried by the scuba diver, that calculates and displays the basic information needed during a dive, i.e., depth, time, decompression status and tank ...
