Maize is an endospermous seed. In endospermous seeds, the endosperm is retained within the seed and the embryo utilizes the stored food in the endosperm during germination. Other options are correct. Maize undergoes hypogeal germination where the cotyledons remain underground. It is a fruit because, in botanical terms, a fruit is the mature ovary of a flower. The pericarp of maize is indeed fused with the testa, forming a structure known as the caryopsis