Which of the following is good advice to follow when near a pool?
A. Swim in the lane nearest the deck for safety.
B. Dive in at the shallow end of the pool very carefully.
C. Keep emergency rescue numbers in the pool area.
D. Keep all doors going into the pool unlocked at all times.
E. Keep extra swim goggles available for swimmers to use.
C. Keep emergency rescue numbers in the pool area.
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_____ is a pigment that ranges in color from yellow to brown to black
Fill in the blank with the right word.
Sleeping sickness and Chagas's disease are caused by members of the genus Trypanosoma, protozoans that reside in the bloodstream. What is the principle way trypanosomes evade the immune response?
A. Antagonistic cytokines are produce by the trypanosome. B. Periodic changes in the surface antigen (VSG) of trypanosomes ensures that at least some cells will survive antibody mediate attacks. C. Trypanosomes are human pathogens and thus immune to human immune responses. D. Trypanosomes invade the brain and red blood cells so that immune effector cells such as macrophages and dendritic cells cannot phagocytize trypanosomes. E. Vaccines are readily available to people in trypanosome infested areas.
A potentially dangerous additive found in processed meats is
A. sulforaphane. B. nitrate. C. sodium chloride. D. beta-carotene.
Kim is a college soccer player. Her training coach assessed her body composition using skinfold thickness. She had 15% body fat. This percentage body fat is classified as
A) obese. B) athletic/low. C) acceptable. D) fitness.