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What kind of organisms are included in the domain Archaea?

Answer and explanation

Correct answer: Ancient bacteria living in harsh conditions

Correct answer: B, ancient or archaea-like prokaryotes commonly associated with harsh environments. Archaea are prokaryotic organisms, but they are distinct from ordinary bacteria in important molecular and biochemical features. Many archaea are known from extreme habitats such as very salty environments, hot springs, or oxygen-free places, although not every archaeal species must live in an extreme habitat. A is not the best answer because ordinary bacteria belong to Bacteria, a separate domain. C is wrong because fungi are eukaryotes. D is wrong because plants are multicellular eukaryotes. Memory cue: Archaea are “ancient-type prokaryotes,” often remembered through extreme habitats.

Related tags

ArchaeaDomainsExtremophilesProkaryotesBiodiversityAnd Classification SystemsBiodiversity And Classification SystemsThe Living WorldBiology

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