Final answer:
Mesenchyme is an embryonic tissue that gives rise to all connective tissues in the body. It is characterized by the presence of mesenchymal cells that supply cells for replacement and repair. The correct phrases that describe mesenchyme are endothelium, mesothelium, and epithelium, as well as epidermis, mesoderm, and endothelium.
Step-by-step explanation:
Mesenchyme is an embryonic tissue from which connective tissue cells derive. It is the stem cell line that gives rise to all connective tissues in the body. Mesenchymal cells are present throughout adult tissue and supply cells for replacement and repair in case of connective tissue injury. Therefore, the correct phrases that describe mesenchyme in the given options are:
- a. endothelium, mesothelium, and epithelium
- d. epidermis, mesoderm, and endothelium