Which of the following levels of classification is the least specific?
domain
kingdom
class
species

Domain

Explanation:

Domain is the least specific.

There three domains are:

* Bacteria - a prokaryote

* Archea - a prokaryote

* Eukarya - a eukaryote

Prokaryotes don't have a membrane-bound nucleus.

Eurkaryotes (including humans) have a membrane-bound nucleus.

The classification from least to most specific is:

Domain -> Kingdom -> Phylum -> Class -> Order -> Family -> Genus -> Species

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.