11. There is some concern about whether the Smith's newborn son was switched with the Johnson's newborn son due to a fire evacuation of the
hospital's nursery. Both Mrs. Smith and Mrs. Johnson have type O blood.
Mr. Smith is heterozygous for type A blood, while Mr. Johnson as type AB
blood. Child #1 has type O blood. Child #2 has type A blood. Which family
does each child belong?*

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt