In short, a legal multi-level marketing (MLM) firm must have a legitimate product, and derive real profits from that product. If a firm derives most revenue from recruits â using the new recruit money to pay older employees, for example â thatâs a pyramid scheme. Common sense goes a long way here.
The terms hip dysplasia, fibrous dysplasia, renal dysplasia refer to an abnormal development, at macroscopic or microscopical level. Myelodysplastic syndromes, or dysplasia of blood-forming cells, show increased numbers of immature cells in the bone marrow, and a decrease in mature, functional cells in the blood.yelodysplastic syndromes, or dysplasia of blood-forming cells, show increased numbers of immature cells in the bone marrow, and a decrease in mature, functional cells in the blood.
Many bones also contain a soft connective tissue called bone marrow. There are two types of bone marrow-red marrow and yellow marrow. 1  Red marrow makes red blood cells, platelets, and most of the white blood cells for the body (discussed in the Diseases and the Bodyâs Defenses chapter).any bones also contain a soft connective tissue called bone marrow. There are two types of bone marrow-red marrow and yellow marrow. 1  Red marrow makes red blood cells, platelets, and most of the white blood cells for the body (discussed in the Diseases and the Bodyâs Defenses chapter).