Sympathetic stimulation to lung will A. Decrease respiratory rate and decrease tidal volume B. Decrease respiratory rate and increase tidal volume C. Increase respiratory rate and decrease tidal volume D. Increase respiratory rate and increase tidal volume Fraternal twins A. Are formed when 1 ovum is fertilized and divide, and separates into 2 zygotes B. Are formed when 2 different ova are fertilized by 2 different sperm during the same menstrual cycle C. Are formed when 1 ovum is fertilized by 2 different sperm divides and separates into 2 zygotes D. Always have the same DNA Sperm cells mature in the A. After fertilizing ovum B. Epididymis C. Seminiferous tubules D. Vas deferens Intrinsic factor A. Is necessary to absorb vitamin A B. Is necessary to absorb vitamin B_12 C. Is necessary to absorb vitamin C D. Is necessary to absorb vitamin D A mature follicle about to ovulate is A. Graafian follicle B. Primary’ follicle C. Primordial follicle D. Secondary follicle The placenta is derived from A. Embryonic tissue only B. Maternal tissue only C. Maternal and embryonic tissue D. Maternal and paternal and embryonic tissue E. Paternal tissue only F. Paternal and embryonic tissue The kidney corrects blood acidosis by A. Secreting H^+ and resorbing HCO_3^- B. Secreting H^+ and secreting HCO_3^- C. Resorbing H^+ and resorbing HCO_3^- D Resorbing H^+ and secreting HCO_3^-