In the field of histopathology, the tissues to be observed under the microscope are cut in very thin slices. The thin slices make the tissue transparent, and thus, it becomes easier to observe the internal structures and accurately diagnose a disease. The tissues slices cut for the observation are generally not more than 3 micro meters in their thickness.
Hence, the answer is 'to make the tissues transparent and easier to observe'.
Answer:
In the apical layer of the pseudostratified ciliated columnar epithelium.
Explanation:
The sustentacular cells work as metabolic and material assistance for the olfactory epithelium. Analogous to neural glial cells, maintaining non-neural cells in the olfactory epithelium that are found in the apical zone of the pseudostratified ciliated columnar epithelium. The olfactory epithelium, located inside the nasal cavity, consists of olfactory receptor cells, which possess functional cilia expansions. The cilia trap odor molecules as they cross beyond the epithelial exterior. Data regarding the molecules are then forwarded from the receptors to the olfactory bulb in the brain. There exist two types of maintaining cells in the olfactory epithelium: sustentacular cells and microvillar cells.
D. proteins
explanation: proteins help you gain and build muscle