Who introduced the five-kingdom system in 1969?
Which scientist identified that archaea have a separate evolutionary lineage from bacteria in 1977?
Which of the following is a unifying feature of Archaea?
What are methane-producing archaea called?
Which group of archaea lives in salty environments?
What is the primary method of asexual reproduction in bacteria?
Which type of bacteria can survive harsh conditions by forming a thick, keratin-like coat?
What is the cell wall of Gram-positive bacteria primarily composed of?
Which of the following is a key feature of Gram-negative bacteria?
Which pigment is primarily responsible for the blue-green color of cyanobacteria?