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?
1) The virus was descended from a common ancestor of bird, pig, and human flu viruses. 2) The infected individuals happened to be infected with all three virus types. 3)Related viruses can undergo genetic recombination if the RNA genomes mix andmatch during viral assembly. 4)The human was likely infected with various bacterial strains that contained all three<span>RNA viruses.</span>
Photosynthesis and cellular respiration are connected through an important relationship. ... Notice that the equation for cellular respiration is the direct opposite of photosynthesis: Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O. Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O
Those are oblique muscles. Biceps brachii are in your upper arm, rectus abdominis are your abs, latissimus dorsi is in your upper back (very big muscle)