Counter-current
131Whale watching in Sydney — is a popular past time in the winter and spring. There are a number of different migration and whale seasonsHumpback MigrationThe Humpback Whale Migration passing Sydney takes place between April and December each year. The season is split into… …
132Hemodialysis — In medicine, hemodialysis (also haemodialysis) is a method for removing waste products such as potassium and urea, as well as free water from the blood when the kidneys are in renal failure. Hemodialysis is one of three renal replacement… …
