ecosystem The living and non-living parts of the environment in a specific area. (Ecosystems can be really small or really large!) ecology The study of how living things are related each other and to their natural environment. Environment Everything that surrounds an organism and influences it. The study of how living things are related each other and to their natural environment.
Von Willebrand disease (VWD) is almost always inherited. Inherited means that the disorder is passed from parents to children though genes. You can inherit type 1 or type 2 VWD if only one of your parents passes the gene on to you. You usually inherit type 3 VWD only if both of your parents pass the gene on to you.
A genetic mutation causes von Willebrand disease. The type of von Willebrand disease that you have depends on whether one or both of your parents have passed a mutated gene on to you. For example, you can only develop type 3 Von Willebrand if youâve inherited a mutated gene from both of your parents.