Which of the Following Categories of Organisms is Least Likely

Question

Which of the following categories of organisms is least likely to be revised?
A) kingdom
B) class
C) order
D) phylum
E) species

Accepted Answer

Species is the least likely to be revised because it is the most specific category and is based on reproductive isolation and genetic differences between populations. However, advances in genetic research and new discoveries can still lead to revisions in species classification. The other categories are broader and more general, and therefore more likely to be revised based on new information or changes in scientific understanding.