Which of the following is NOT a characteristic of bacteria?

Bacteria are classified as unicellular organisms, meaning they consist of a single cell. This characteristic differentiates them from multicellular organisms, which are composed of multiple cells and can perform more complex functions as a collective unit. Bacteria are known for their ability to reproduce rapidly, with some species capable of doubling in number within a matter of hours under optimal conditions.

Additionally, the ability of some bacteria to form spores is a survival mechanism, allowing them to withstand harsh environments. This process enables bacteria to remain dormant until conditions are favorable for growth. Therefore, not being multicellular accurately captures a fundamental aspect of bacteria, affirming that they are primarily single-celled organisms.