moon7296 Are both form s correct? No, the sentence is correct without an apostrophe. The phrase for some young animals is an adjunct in the content clause.
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moon7296Are both forms correct?No, the sentence is correct without an apostrophe. The phrase for some young animals is an adjunct in the content clause. It can be followed by a comma: for some young animals, repeated exposure to an environmental stimulus establishes social behavior. The subject is the n