Answers: 2
Biology, 22.06.2019 09:30, ceeejay0621
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.
Answers: 1
Biology, 22.06.2019 14:00, wolffee895
Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d
Answers: 1
Biology, 22.06.2019 15:40, imlexi12393
What happens when two nitrogen atoms share electrons
Answers: 1
Biology, 22.06.2019 22:00, preservations
Identify the fungus type pictured below. the image shows a mushroom used often in cooking, will gills underneath its cap.
Answers: 1
What do you call a pig that knows karate...
Computers and Technology, 01.07.2019 00:00
Chemistry, 01.07.2019 00:00
Mathematics, 01.07.2019 00:00
History, 01.07.2019 00:00
Mathematics, 01.07.2019 00:00
English, 01.07.2019 00:00
History, 01.07.2019 00:00