Final answer:
Bacterial cells such as staphylococci are spherical and form clusters, and their arrangements are visible using darkfield microscopy setups. These arrangements result from the division and adherence of daughter cells post-division.
Step-by-step explanation:
To describe the shape and arrangement of bacterial cells, one would use specific microbiology terms. For instance, spherical bacteria grouped in clusters are referred to as staphylococci. In the given example, using a darkfield microscopy setup improves visibility of these cells against the background, as it provides a dark background with the cells highlighted, enhancing contrast and allowing the arrangement to be observed more clearly.
When discussing how bacterial cells produce 'arrangements', it's important to note that bacteria can replicate in specific ways that result in recognizable patterns or clusters, such as chains or clusters, due to their mode of division and how the daughter cells adhere to each other post-division.