The following table shows the distance from the sun of some unknown planets of equal mass. Distance from Sun Planet Distance from Sun W 1.5 AU X 0.723 AU Which of the following best explains which planet revolves at a faster speed? Planet X, because the sun pulls it with a greater force Planet W, because the sun pulls it with a greater force Planet W, because the gravitational force is weakened by distance Planet X, because the gravitational force is strengthened by distance

Which of the following structures is not found in both plant and animal cells? a) chloroplast b) cytoskeleton c) ribosomes d) mitochondria

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area