The painkiller sold as Ziconotide comes from a
A) bacterium. B) snail. C) plant. D) fungus.
B
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After a car accident in which his head hit the windshield, the injured man could no longer enjoy food through his sense of smell. Which cranial nerve was destroyed?
A) Trigeminal nerve B) Vagus C) Olfactory D) Facial
If the prostate stopped secreting fluid, this would result in semen
A) that lacked sperm. B) with a higher than normal pH. C) with less fructose. D) with no mucus. E) that was rich in prostaglandins.
Which is not true about spermatogenesis?
A. The process includes two meiotic divisions. B. The final stage of the process is called spermiogenesis. C. Mature spermatozoa are haploid (n=23). D. Spermatogenesis begins at birth and continues throughout a man's life. E. The process takes place in the walls of the seminiferous tubules.
Iron molecules released from the breakdown of hemoglobin are transported through the blood by:
A) transferrin. B) antibodies. C) vitamin B12. D) albumin.