Describe briefly how you would detect the presence of a non-culturable prokaryote in an environmental sample.
Why do scientists believe that the first organisms on Earth were extremophiles?
Mention three differences between bacteria and archaea.
Explain the statement that both types, bacteria and archaea, have the same basic structures, but built from different chemical components.
Think about the conditions (temperature, light, pressure, and organic and inorganic materials) that you may find in a deep-sea hydrothermal vent. What type of prokaryotes, in terms of their metabolic needs (autotrophs, phototrophs, chemotrophs, etc.), would you expect to find there?
Explain the reason why the imprudent and excessive use of antibiotics has resulted in a major global problem.
Researchers have discovered that washing spinach with water several times does not prevent foodborne diseases due to E. coli. How can you explain this fact?
Your friend believes that prokaryotes are always detrimental and pathogenic. How would you explain to them that they are wrong?