Dicot Seed Diagram:
A dicot seed typically consists of two seed leaves or cotyledons, which are attached to the embryo. The seed coat protects the internal structures of the seed. The diagram of a dicot seed will show the arrangement of the cotyledons, embryo, seed coat, and the endosperm.

Monocot Seed Diagram:
A monocot seed usually has only one seed leaf or cotyledon. The embryo is attached to this cotyledon, and the seed coat protects the internal structures. The endosperm provides nutrients for the developing seedling. The diagram of a monocot seed will illustrate these components.

Tap Root Diagram:
A tap root system consists of a main root that grows vertically downward, with lateral roots branching off from it. The diagram of a tap root will show the main root, lateral roots, and root hairs. This type of root system is typical in dicot plants.

Fibrous Root Diagram:
A fibrous root system is characterized by many thin, branching roots that spread out horizontally from the base of the stem. The diagram of a fibrous root system will depict the network of fine roots. This type of root system is common in monocot plants.
In summary, dicot seeds have two cotyledons, while monocot seeds have one. Tap roots have a main root with lateral branches, while fibrous roots have a network of thin roots. The diagrams of these structures help in understanding the anatomy and function of seeds and roots in plants.