Question

In time, scientists observed a key characteristic that required reclassification. What was that characteristic of the fungi?

Answer 1

The key characteristic that required reclassification of fungi was the presence of chitin in their cell walls. Chitin is a polysaccharide that is found in the cell walls of fungi, but not in the cell walls of plants or animals. This discovery led to the reclassification of fungi as a separate kingdom from plants and animals.