An 83-year-old woman is placed at a small table in a dark corner of a trendy nightclub and is ignored by the staff. her shoddy treatment is probably due to her age, which is a(an) status.

What element does susan b. anthony include in this passage to strengthen her argument?

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

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.