Navel

Gazing

Scientists discover hundreds of new species of

microbes—burrowed deep in our belly buttons.

◆ (^) Differentiate between bacteria and archaea, and explain why they are together
referred to as prokaryotes.
◆ (^) Explain why prokaryotes can reproduce more rapidly than eukaryotes and why rapid
reproduction can be advantageous.
◆ (^) Give examples of the environments in which archaeans are found.
◆ (^) Illustrate through example the breadth of metabolic diversity found in bacteria.
◆ (^) Explain the function of at least one cellular structure that is unique to prokaryotes.
◆ (^) Explain how citizen science contributes to scientific research.
After reading this chapter you should be able to: