write the meaning of following wotds:1. mammals2. communicate3. marine4.tactic5.complex

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mammals - warm-blooded vertebrate animals characterized by the possession of hair or fur, the secretion of milk by females for the nourishment of their young, and typically live birth.communicate - to exchange information, thoughts, or feelings through speech, writing, or other means of expression.marine - of or relating to the sea or ocean; found in or produced by the sea.tactic - a carefully planned strategy or maneuver designed to achieve a specific goal.complex - consisting of many interconnected parts; intricate or complicated.