Before the modern era of science, organisms were assigned to species on the basis of:

Question

Quizplus · Accepted Answer

Before the modern era of science, organisms were primarily assigned to species based on their similarities in appearance. This was often done through visual observation and comparison of physical characteristics. Other criteria, such as geographic location and behavioral similarities, were sometimes considered but were not as reliable in distinguishing between species. Fossil evidence was also used, but was generally less accessible and less reliable for identifying living species. However, it is important to note that these early methods of classification were often subjective and did not always accurately reflect underlying genetic or evolutionary relationships between organisms.

Before the Modern Era of Science, Organisms Were Assigned to Species