Examlex
The expression of genes always occurs from within a/an _______________.
Tension
A physical or psychological state of being stretched tight which can refer to the force applied to something or a feeling of strain and anxiety.
Trachea
A cylindrical tube within the respiratory system that provides air flow to and from the lungs for respiration.
Bronchi
Major passages of the respiratory system that diverge from the windpipe (trachea) and direct air into the lungs.
Cilia
Microscopic, hair-like structures on the surface of cells that move in a waving motion to transport substances across the cell surface.
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