Examlex
The more important contributions to emotions come from the effects of the autonomic nervous system, not muscle activity.
Cell Theory
One of the major theories of biology, which states that all organisms are made up of cells; cells are capable of self-reproduction and come only from preexisting cells.
Plasma Membrane
The lipid bilayer that encloses the cytoplasm of a cell, controlling the passage of substances in and out of the cell.
Gelatinous Sheath
A thick, viscous covering produced by some bacteria and algae, surrounding their cell or colony, providing protection and sometimes aiding in movement.
Capsule
A protective outer covering of some organisms or the shell of a medication designed for swallowing.
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