The character of the seed coat bears a definite relation to that of the fruit. They protect the <answer>embryo</answer> and aid in dissemination; they may also directly promote germination. Among plants with indehiscent fruits, in general, the fruit provides protection for the <answer>embryo</answer> and secures dissemination. In this case, the seed coat is only slightly developed. If the fruit is dehiscent and the seed is exposed, in general, the seed-coat is well developed, and must discharge the functions otherwise executed by the fruit.
What does the seed coat protect?
embryo