Is it correct to claim that traits always become more complex or specialized over time?

Jimmy carter served in the georgia senate from 1963-1967. which issue would he have been most likely to have delt with as a georgia senator

How many soultions does the system of equations have y= -6x + 330x + 5y = 15a.one b.twoc.infinity manyd.none

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling