Osmosis causes water to move from areas of low salt concentration to areas of high salt concentration. the internal nacl concentration of red blood cells is 0.9 m. the diagram below shows red blood cells submerged in solutions of four different nacl concentrations—0 m, 0.65 m, 0.9 m, and 2 m. red blood cell osmosis which of the diagrams shows red blood cells in the 2 m solution?

Which describes the changes in the earths motion?

Which of th following is needed for cellular respiration to occur

Mr. j, age 42, is a construction worker in las vegas. he recently noticed that a mole on his face seemed to be getting larger and darker. at first he did not worry because he was in the sun a lot and assumed the change may have been caused by sunburn. after a month, not only was the mole larger and darker, but it appeared to be “bumpy.” his doctor diagnosed a malignant melanoma skin cancer following biopsy of the nevus. mr. j reports pain in his right shin that does not go away when he puts his feet up or sleeps. discussion questions 1. relate mr. j’s skin changes to the warning signs for malignant melanoma. (see malignant melanoma.) 2. discuss the normal progression of this malignancy. what is the significance of the bone pain that mr. j is experiencing? (see malignant melanoma.) 3. discuss the treatment available for this patient and the prognosis for recovery. (see malignant melanoma.)