Bacteria
Bacteria explained in an easy to understand way:
Imagine you're trying to build a sturdy sandcastle at the beach, but the waves keep washing it away. This situation is similar to how bacteria, specifically a domain of unicellular prokaryotes, have to protect themselves in a constantly changing environment. Just as you would build a wall around your sandcastle to shield it from the waves, bacteria have cell walls that provide structure and protection from external forces, ensuring they remain intact and functional despite the challenges around them.
Practice Version
Bacteria: A domain of unicellular prokaryotes with cell walls. Bacteria. Bacteria are tiny living organisms found everywhere, some of which can cause disease while others are beneficial.