1, the seeds of soybean and corn are all composed of embryo and seed coat. Wherein the seed coat and pericarp of corn seeds are closely attached together; Embryo includes radicle, embryo, hypocotyl and cotyledon.

Second, the difference between soybean seeds and corn seeds:

1. Soybean seed is a dicotyledonous plant with two cotyledons; Corn is a monocotyledonous plant in Gramineae, and its seed has only one cotyledon.

2. Soybean seeds have no endosperm; Corn seeds have endosperm.

3. Nutrients for soybean seed embryo development are stored in cotyledons; Nutrients for maize seed embryo development are stored in endosperm.