The following are examples of polyunsaturated fatty acids EXCEPT

Correct Answer: B

Rationale: Polyunsaturated fatty acids (PUFAs) have multiple double bonds. 'Oleic acid,' is correct as the exception, a monounsaturated fatty acid with one double bond, per biochemistry (e.g., Harper's). 'Linoleic acid,' 'Arachidonic acid,' and 'Linolenic acid,' are PUFAs with multiple bonds, essential in diets. Oleic acid's single unsaturation contrasts with PUFAs' plurality, making B the precise answer.

Correct Answer: B

Rationale: Vital capacity is the maximum air exhaled after full inhalation, about 4.8 L. 'Vital capacity,' is correct, per physiology (e.g., Tortora). 'Tidal volume,' is normal breath. 'Residual volume,' stays in lungs. 'Total lung capacity,' includes residual. Vital capacity's exhalable measure distinguishes B as the precise answer.

Correct Answer: C

Rationale: Long bones are longer than wide, in limbs. 'Carpals,' is correct as the exception, short bones in the wrist, per anatomy (e.g., Tortora). 'Humerus,' 'Femur,' and 'Tibia,' are long bones. Carpals' compact shape makes C the precise answer.

Correct Answer: B

Rationale: The skin, covering the body, is the largest organ by surface area and weight (about 15% of body mass). 'Skin,' is correct, per anatomy (e.g., Tortora). 'Liver,' is largest internal. 'Heart,' and 'Lungs,' are smaller. Skin's expanse makes B the precise answer.

Correct Answer: D

Rationale: Sterilization eliminates all microbes. 'Incubation,' is correct as the exception, growing organisms, per microbiology (e.g., Prescott). 'Autoclaving,' uses steam. 'Dry heat,' uses ovens. 'Filtration,' removes microbes. Incubation's growth purpose makes D the accurate answer.