baktériové
Baktérie are single-celled microorganisms that are found in virtually every environment on Earth. They are prokaryotic, meaning their cells lack a nucleus and other membrane-bound organelles. Bacteria vary greatly in size and shape, ranging from spheres (cocci) to rods (bacilli) to spirals (spirilla).
These organisms play crucial roles in ecosystems. Many bacteria are decomposers, breaking down dead organic matter
However, not all bacteria are beneficial. Some species are pathogenic, causing diseases in humans, animals, and