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pratice
work
15
Science
8th Grade
05/29/2012

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Term
atomic number
Definition
the number of positive charges or protons in the nucleus of an atom of a given element, and therefore also the number of electrons normally surrounding the nucleus.
Term
bioindicator
Definition
a biological indicator of the well-being or abundance of an organism, which is then used to describe the quality of the ecosystem
Term
buoyancy
Definition
the power of supporting a body so that it floats; upward pressure exerted
Term
individual
Definition
a single organism capable of independent existence.
Term
potency
Definition
the state or quality of being potent.
Term
exposure
Definition
an act or instance of revealing or unmasking, as an impostor, crime, or fraud
Term
suspension
Definition
temporary abrogation or withholding, as of a law, privilege, decision, belief,
Term
susceptibility
Definition
capacity for receiving mental or moral impressions; tendency to be emotionally affected.
Term
unicellular
Definition
Having or consisting of only one cell.
Term
multicellular
Definition
Having or consisting of many cells
Term
microscope
Definition
An instrument, such as an electron microscope, that uses electronic or other processes to magnify objects.
Term
cell membrane
Definition
a very thin membrane, composed of lipids and protein, that surrounds the cytoplasm of a cell and controls the passage
Term
cytoplasm
Definition
The protoplasm outside the nucleus of a cell.
Term
nucleus
Definition
the positively charged central region of an atom, composed of one or more protons and (for all atoms except hydrogen) one or more neutrons, containing most of the mass of the atom. T
Term
organelle
Definition
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