Compared to the weight of a person at the north pole, the weight of the same person at the equator would be
1) slightly less, because the person is farther from the center of earth.
2) slightly more, because the person is farther from the center of earth.
3) slightly less, because the person is closer to the center of earth.
4) slightly more, because the person is closer to the center of earth.
explain

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

7. describe two strategies that parents can use to cope with stress. 8. describe the three types of childcare available to families. 9. what can parents do to be more involved in their children's education at home and at school? 10. which factors should a parent consider when choosing a childcare option?

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.