Select ALL the correct answers. Rock pocket mice with different color variations are observed in the desert regions of Arizona. The fur color of the mice helps them blend in with their environment to avoid predators. There are black basaltic rocks in the southwest region of the desert. However, most of the desert regions have sand that is light brown in color.

Which two statements are true about the population of mice in both regions?

Black mice will be better adapted in the black basaltic rock regions.
Light brown mice will be better adapted in the black basaltic rock regions.
Black mice will be better adapted in the sandy regions of the desert.
Light brown mice will be better adapted in the sandy regions of the desert.

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.)