Which of the following statements best describes the major difference between metaphase i of meiosis and metaphase of mitosis?
(a) in metaphase i, tetrad sets of homologous chromosomes stay together as they line up along the center of the cell.
(b) in metaphase, homologous chromosomes are separated as each sister chromatid set is pulled to one end of the cell.
(c) in metaphase, sister chromatids are separated and pulled apart to form a total of four new haploid cells.
(d) in metaphase i, sets of sister chromatids line up at the center of the cell and the spindle fibers pull them apart.

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

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

Vessels draining the myocardium of the heart, open primarily ,into which chamber?