Question

What is the major difference between an embryo and a seed

Answer 1

A
seed
is a small embryonic plant enclosed in a covering called the seed coat, usually with some stored food . It is the product of the ripened ovule of gymnosperm and angiosperm plants which occurs after fertilization and some growth within the mother plant.
An
embryo
is a multicellular diploid eukaryote in its earliest stage of development , from the time of first cell division until birth, hatching or germination . In humans, it is called an embryo until about eight weeks after fertilization (i.e. ten weeks after the last menstrual period or LMP), and from then it is instead called a fetus .