D. Connective tissue cells. Loose connective tissue contains a variety of cell types. Those that will be considered in this lecture include: (1) endothelial cells, (2) pericytes, (3) fibroblasts, (4) macrophages, (5) plasma cells, (6) mast cells, and (7) fat cells.
niche noun [ C ] (POSITION) âº a job or position that is very suitable for someone, especially one that they like: He has carved/made a niche for himself as a financial advisor. âº an area or position that is exactly suitable for a small group of the same type: an ecological niche.
Share. By Laura Klappenbach. The term niche is used to describe the role an organism or population plays within its community or ecosystem. It encompasses all relationships that the organism (or population) has with its environment and with other organisms and populations in its environment.he term niche is used to describe the role an organism or population plays within its community or ecosystem.