Which of the following best compares linnaean taxonomy with cladistics?
a.) cladistics is impractical when trying to classify millions of species, whereas the linnaean taxonomic system allows for multiple possibilities for organization and no limits to the size of the hierarchy.
b.) linnaean taxonomy organizes living things based on genetic traits and evolutionary history, whereas cladistics uses a fixed number of clades, or branches, by which organisms are classified.
c.) linnaean taxonomy uses obvious physical similarities to group organisms into an evolutionary framework, whereas cladistics does not take physical traits into account.
d.) cladistics provides possible evolutionary explanation of physical traits in organisms, whereas linnaean taxonomy groups organisms based on physical traits though they may not be related.

Option D, Cladistics provides possible evolutionary explanation of physical traits in organisms, whereas Linnaean taxonomy groups organisms based on physical traits though they may not be related.

Explanation:

Cladistic Classification is based on the ancestral relationship among the species. In this, species are organized based on the evolution.  

While in Linnaean taxonomy, organisms are classified based on the physical traits/characteristics. In other way the organisms are aligned in an order based on the similarities of the shared/non-shared characteristics possessed by them. It is more or less a superficial classification.  

Hence, option D is correct

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

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