Answer :
Final answer:
Bacterial and archaeal species are collections of similar organisms that share physical and genetic traits, and can interbreed to produce viable offspring. They are types of prokaryotic organisms, which lack a nucleus.
Explanation:
In biology, a common definition is that bacterial and archaeal species are a collection of organisms that share similar physical and genetic characteristics. These characteristics set them apart from members of other species. Bacteria and archaea are both types of prokaryotic organisms, meaning they are primitive forms of life that lack a nucleus. These communities of similar organisms are able to interbreed to produce viable offspring, further reinforcing their classification as a singular species.
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