Stress can generate multiple chain reactions. the body is prepared to either face a threat head-on or run away from it. this primal survival skill is called the response. once the brain perceives something to be a , the system signals the release of stress hormones like from the adrenal glands. during the alarm phase, some systems are more alert in order to prepare the body for action. for example, sharpens, rate increases, pressure rises, and clotting ability increases. at the same time, the digestive and systems slow as blood is diverted to more critical areas. prolonged stress can diminish the quality of your life. stress can have manifestations like tension headaches, indigestion, and hair loss. stress can also have effects like depression and anxiety.

How do temperature and salinity affect deepwater currents? they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water.

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.)

Which of the following can be assumed about the layers in areas 2 and 4