In human body temperature is kept fairly constant by automatic responses controlled by

In human body temperature is kept fairly constant by automatic responses controlled by hypothalamus.  It secrete neurohormone , called as hypothalamic releasing hormone which stimulate and secrete  pituitary hormones. Hypothalamus is responsible for the control of body temperature.

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation: