Why is it easier to tackle a 220lbs football player than a 288lb player

The frequency in wich you perform certain exercise depends on the blank of the exercise

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

What are the five food groups recommended by the usdas my plate food guidance system