Asediment core is removed from the floor of an inland sea. the sea has been in existence, off and on, throughout the entire time that terrestrial life has existed. researchers wish to locate and study the terrestrial organisms fossilized in this core. the core is illustrated as a vertical column, with the top of the column representing the most recent strata and the bottom representing the time when land was first colonized by life. in order to assign absolute dates to fossils in this sediment core, it would be most if
a. volcanic ash layers were regularly interspersed between the sedimentary strata.
b. the sediments had not been affected by underwater currents during their deposition.
c. metamorphic rock strata alternated with sedimentary rock strata.
d. we knew the order in which the fossils occurred in the core.
e. fossils throughout the column had equal ratios of a parental radioisotope to its daughter isotope.

A. volcanic ash layers were regularly interspersed between the sedimentary strata.

Explanation:

The discovery of a fossil is a moment of accomplishment for archaeologists, hence the date dating process begins and the older the relic the greater its value for paleontology. Chemistry is present in this process, more precisely the carbon element, but other elements can be used as uranium, lead, potassium and argon.

In the case of the fossils reported in the question, to assign absolute dates to fossils in this sediment core would be most useful if volcanic ash layers were regularly interspersed between sedimentary strata because it would separate sedimentation times and allow the use of more than one element. dating, making the search more complete and the date most credible.

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation: