Final answer:
Stromal cells are known as Mesenchymal cells, playing a role in tissue support and differentiation into various cell types. Cells in a developing embryo originate from the ectoderm, mesoderm, and endoderm, each contributing to different body tissues. Desmosomes are found in tissues like muscle and skin which endure mechanical stress.
Step-by-step explanation:
Stromal cells are also known as d) Mesenchymal cells. These cells play a supportive role in tissues and are important for healing and tissue regeneration. They are part of the connective tissue and can differentiate into a variety of cell types, including bone, cartilage, and fat cells.
Differentiated cells in a developing embryo come from b) ectoderm, mesoderm, and endoderm. These three primary germ layers each give rise to different cell types and tissues within the body, with the ectoderm forming structures such as the skin and nervous system, the mesoderm forming tissues like muscle, bone, and blood, and the endoderm forming internal structures like the lining of the digestive tract.
Desmosomes can be found in human tissues that are subject to mechanical stress and require flexible connection. They are most commonly found in b) muscle cells and skin cells, providing the strength and integrity necessary to withstand physical forces.