[Solved] Which protist group includes large multinucleate terrestrial heterotrophs that are visible to the naked eye and can be several yards in diameter? A) Ciliates B) Euglenids C) Brown algae D) Foraminiferans E) Plasmodial slime molds Repression: A psychological defense mechanism where distressing thoughts and feelings are unconsciously blocked from conscious awareness. Defence Mechanism: Unconscious maneuvers used to defend a person against the discomfort brought on by objectionable feelings or notions. Regression: A statistical method used for estimating the relationships among variables. Adult: An individual who has achieved full physical and psychological maturity.