[Solved] Which of the following is NOT a feature associated with filtration? A) nitrocellulose or plastic membrane filters B) sterilization of heat-sensitive materials C) varying thicknesses of membrane filters used D) use of HEPA filters to filter air E) ability of some filters to trap viruses and proteins Depressants: Drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions. Barbiturates: A group of drugs that act as central nervous system depressants, often used for their sedative, hypnotic, and anticonvulsant properties. Erotic Movie Clip: A short segment of film designed to provoke sexual arousal or interest. Sexual Fantasies: Imagined sexual scenarios that individuals find arousing or erotic.