It's estimated that by the age of five, a child whose parent or parents work full time will have spent of their lives in the care of someone other than their parents in some type of child care setting.

a. 1%
b. 25%
c. 75%
d. 100%

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