Nkechi took a random sample of 101010 countries to study fertility rate (babies per woman) and life expectancy (in years). She noticed a strong negative linear relationship between those variables in the sample data. Here is computer output from a least-squares regression analysis for using fertility rate to predict life expectancy:

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

not sure if this is what you'r looking for eubacteria and archaebacteria

can you make it bigger i can't see it

the answer is c. altitude. hope this ! #brainiac