Matching A. cervical B. axillary C. plantar D. gluteal E. femoral F. orbital G. pubic H. antebrachial O. deltoid J. cubital K. lumbar L. carpal M. patellar N. fibular O. sacral P. coxal Q. thoracic R. antecubital S. oral T. popliteal U. brachial V. frontal W. tarsal X. buccal Y. perineal Z. sural 50. forearm 41. eye region 51. bottom of foot 32. between anterior pelvis 33. between pubis and anus 34. posterior elbow 42. buttocks 52. outside of lower le 43. posterior lower leg 53. chest 35. neck 44. anterior elbow 45. anterior knee 54. mouth 36. genital region 55. armpit 46. shoulder 37. thigh 56. arm 38. forehead 47. posterior knee 39. cheek 48. lower back 57. hip region 49. wrist 40. ankle

In 2009, a flu pandemic was believed to have originated when viral transmission occurred from pig to human, thereby earning the designation, "swine flu." although pigs are thought to have been the breeding ground for the 2009 virus, sequences from bird, pig, and human viruses were all found within this newly identified virus. what is the most likely explanation of why this virus contained sequences from bird, pig, and human viruses? a) the virus was descended from a common ancestor of bird, pig, and human flu viruses. b) the infected individuals happened to be infected with all three virus types. c) related viruses can undergo genetic recombination if the rna genomes mix and match during viral assembly. d) the human was likely infected with various bacterial strains that contained all three rna viruses.