60 free tutoring:   my teachers have provided a google classroom where there is an introduction video to meet your teacher & also get your assignments & more. you are not officially a part of the class until you join the classroom. : ) . instructions to join are below! we will be doing a variety of different levels of material it all is based over the age group of our class. i'm thrilled to have you all with us this year.. instructions: copy & paste the link to the google classroom:then above at the top right hit the plus sign "+" and hit join class. then type the code below : ) use the class code to join : 77gsdup all assignments will be posted daily, watch the introduction video for information my question: : are you able to join easily ? : )

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.