Activity In the box below, write five factors that affect your health that you can control. Then write five more factors that affect your health but are outside
of your control.

Explain how unhealthful weight loss or weight gain can lead to further weight loss or weight gain.

Aresearcher lyses a cell that contains nucleic acid molecules and capsomeres of tobacco mosaic virus (tmv). the cell contents are left in a covered test tube overnight. the next day this mixture is sprayed on tobacco plants. we expect that the plants would ) develop some but not all of the symptoms of the tmv infectionb) develop the typical symptoms of tmv infectionc) not show any disease symptomsd) become infected, but the sap from these plants would be unable to infect other plants

In 2009, 40% of all bicyclist fatalities occurred when the bicyclist, the driver, or both vehicle operators were