Alllivingorganisms,regardlessoftheiruniqueidentity,havecertainbiological,chemical,andphysicalcharacteristicsincommon.

Theflowerbudofawaterlily百合opensatsunsetsince.itsopeningistriggered(commence).bythedecreasedlight.

Communicationisoneofthemostimportantbondsthatholdculturalsystemstogether.

Thecontrolsofmostmodernairplanescanbeoperatedeithermanuallyorautomatically.

Bythenineteenthcentury,embroideryonmen'sclothinghadvirtuallydisappearedexceptfortheoccasionaldecorativevestandtie.