Which of the following choices correctly matches a tool and its proper application?
a. cell fractionation to study the function of specific organellesb. scanning electron microscopy (sem) to study the detailed movements of living cellsc. transmission electron microscopy (tem) to study the surfaces of preserved cellsd. transmission electron microscopy (tem) to study the movement of organelles within a living celle. light microscopy to study the internal structure of cilia

The correct answer is option A. "cell fractionation to study the function of specific organelles".

Explanation:

Cell fractionation is a scientific process used to study the function of specific organelles, which main idea is to fractionate the cells but preserving the individual function of the elements of the cell. Usually, the separation takes place by a centrifugation method. This methodology was developed to identify the location of the organelles within the cells, but nowadays is used to study its functions.

equal distribution i think.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation: