As soon as you are injected into your host’s bloodstream, you feel as though you are being pulled apart. Some large, attractive forces are pulling at your legs from different directions! You look about but can see only water molecules. After a moment’s thought, you record that these forces must be the __3__ that are easily formed and easily broken in water.

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

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.

In the essay section of this assignment make a list of 5 of your favorite physical activities. do you like swimming, rollerblading, riding your bicycle, hiking, or playing a sport? maybe you like to go walking around your neighborhood or around the mall. even dancing to music in your room counts as a physical activity. if you can't think of five activities you like to do, list as many as you can think of and write down things you would like to try in the remaining spaces. now that you've written down some of your favorite activities, set a schedule for when you will participate in these activities. try to do each one at least one time this week for a duration of at least 30 minutes. observe how you feel while you are participating in each activity, directly after you finish with the activity, two hours after the activity, and the day after the activity. do you feel better than you did last week when you weren't as active, or do you feel the same? do you have more energy during the day? can you sleep better at night? do you have the urge to be more active? do you feel more relaxed? record any changes to your mood that occur during this time