What are the two classes of the phylum anthophyta and what are the primary characteristics that separate them?

The two classes of the phylum Anthophyta are Monocotyledonae (monocots) and Dicotyledonae (dicots). The primary characteristic that distinguishes them is the number of cotyledons in their seeds. Monocots have seeds with one cotyledon, while dicots have seeds with two cotyledons. Additionally, monocots typically have parallel leaf veins, floral parts in multiples of three, and fibrous roots, while dicots often have branched leaf veins, floral parts in multiples of four or five, and a taproot system.