Jennifer starts with a population of 100 amoebas that doubles in size every minute for a number of minutes, . she writes the expression 100(2) to find the number of amoeba after minutes. nathan starts with a population of 10 amoebas that increases 40% in size every minute for a number of minutes, . he writes the expression (1+0.4)^ to find the number of amoeba after minutes. use the drop-down menus to explain what each part of jennifer's and nathan's expressions mean.