Formerly , in the United States, many nurses worked as private duty nurses rather than in hospitals.
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Withtheacquisitionofsmallercompaniesbylargerones,the1960'ssawawaveofnewconglomerates.
Someseaurchins海胆havevenomous(toxin)spines
Alllivingorganisms,regardlessoftheiruniqueidentity,havecertainbiological,chemical,andphysicalcharacteristicsincommon.
Communicationisoneofthemostimportantbondsthatholdculturalsystemstogether.
Batsfly,ratherthanglide,andthusaretheonlymammalscapableoftrueflight.