Robert Hooke, Anton van Leeuwenhoek, and the invention of the microscopic opened our eyes to the world around us. Microscopic life covers nearly every.
19–1 Bacteria The smallest and most common microorganisms are prokaryotes—unicellular organisms that lack a nucleus.
Prokaryotes 20-2
The word bacteria is so familiar that we will use it as a common term to describe prokaryotes. Prokaryotes come in many sizes and shapes, they are.
