Examlex
According to research, increased brainpower is most likely due to _____.
Three-Domain System
Classification system that places all organisms into one of three large domains—Bacteria, Archaea, and Eukarya.
Archaea
A domain of single-celled microorganisms without a nucleus, distinct from bacteria and eukaryotes, often found in extreme environments.
Eukarya
One of the three domains of life, consisting of organisms with cells characterized by a nucleus enclosed within membranes.
Systematic Biology
A branch of biology that focuses on classifying organisms and determining their evolutionary relationships.
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