Answer:
Glaciation and the Antarctic Circumpolar current
Explanation:
As the supercontinents continued to separate, cold water was easily transported around the globe through the Antarctic Circumpolar current. This assisted periodic glaciation during the Cenozoic Era, leading to a series of ice ages.
False.
The semilunar valves are the pulmomic and aortic values.
the mitral and tricuspid valves prevent back flow of blood into the atria.
The answer would be TIA
Transient Ischemic Attack or TIA is a <span>sudden deficient supply of blood to the brain lasting a short time. This will cause the loss or reduction of function of the affected brain area. The symptoms should disappear <24 hours to have it diagnosed as TIA. If the symptoms persist >24 hours, the diagnosis would be RIND or stroke.</span>