The answer to the crossword for the term 'prefix with plasm or morphic' is ENDO. ENDO is a prefix that means 'WITHIN' or 'INNER'. It is often used in combination with other words to describe something that is inside or internal, such as endoplasmic reticulum or endomorphism. It is also used in combination with plasm or morphic to describe something that is related to the INNER structure of a cell or organism.