Answer:
Cells have different shapes because theydo different things. ... The shapes ofcells have evolved to help them carry out their specific function in the body, so looking at a cell's shape can give clues about what it does. Neurons are cells in the brain and nervous system.
The answer that best fits the blank is RENDERS CILIA IMMOBILE. What happens when the left-right asymmetries in humans are reversed would lead to a genetic condition that renders cilia immobile. This is based on the role of the ciliated cells in the body that has an important impact in one's biological development.
i believe the answer is d. hope it helps