6. Intravenous (IV) solutions are usually so as to prevent damage to red blood cells.

A. Hypotonic
B. Isotonic
C. Hypertonic

Please someone help me

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

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