Dan jumps rope once a week at 65%-85% of his maximum heart rate for 10 minutes. If Dan wants to improve his cardiorespiratory endurance, what part of
his workout will he need to increase?

All houses are built according to safety standards, so it is not important to consider injury prevention while at home. select the best answer from the choices provided. otf

Wich technque is not recommended for use as a supporting detail

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.