How do bacterial cells maintain their shape?

bacterial cells maintain their shape with cell wall.

Explanation:

The bacterial cells have an amazing way of maintaining their shapes using the cell wall. The cell wall is a rigid structure found in some animals and plants. The bacteria are bounded by a cell wall containing mucoproteins.

The cell wall allows selective entry of materials into the cell but is fully permeable to materials in solution. In plants, it gives them a define shape as well as providing mechanical support and protection against mechanical injury.

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]