Step-by-step explanation:
The presence or absence of a tail-like structure, called a flagellum, in bacterial cells can be influenced by a variety of factors. It's important to note that not all bacteria have flagella, and the presence or absence of a flagellum can vary between different bacterial species and even within the same species.
One possible reason why one bacterial cell may have a flagellum while the other two cells do not could be due to differences in their respective environments. Bacteria can adapt to their surroundings and develop specific structures or behaviors that aid in their survival and movement. For example, if one bacterial cell is in an environment where there is a need for swift movement, it may have evolved a flagellum to help propel itself through its environment more efficiently.
On the other hand, the two bacterial cells without a flagellum might be in environments that do not require rapid movement. They may have evolved alternative mechanisms to navigate their surroundings, such as using pili or other appendages to adhere to surfaces or form colonies.
It's important to remember that bacterial cells are highly diverse and can exhibit a wide range of adaptations. Factors such as genetic differences, environmental conditions, and evolutionary pressures can all contribute to the presence or absence of a flagellum in bacterial cells.
In conclusion, the presence or absence of a flagellum in bacterial cells can vary depending on the specific bacterial species and their respective environments. The presence of a flagellum can aid in movement through fluid environments, while the absence of a flagellum may indicate alternative mechanisms for survival and navigation.
Hope this helps.