A Coombs test (also known as Coombs' test, antiglobulin test or AGT) is either of two clinical blood tests used in immunohematology and immunology.
Hudson Bay (Inuktitut: Kangiqsualuk ilua, French: baie d'Hudson) (sometimes called Hudson's Bay, usually historically) is a large body of saltwater in northeastern Canada with a surface area of 1,230,000 square kilometres (470,000 sq mi).
The Hudson Bay Lowlands are located between the Canadian Shield and southern shores of Hudson Bay and James Bay. Most of the area lies within the province of Ontario, with smaller portions reaching into Manitoba and Quebec. The Hudson Bay Lowlands is one of the largest wetland in the world. There are a lot of marshes along the coast in major rivers. Physical Features. In the Hudson Bay Lowlands there's usually some permafrost.There can be lots of floods.This region is one of the flattest parts of Canada. It is so near to the sea that it is marshy and the water does not drain away. This is a picture of permafrost in the region This is a picture of the Hudson bay lowlands in the continent