 |
| |||
| hypoblast (the innermost of the three primary germ layers of an animal embryo, developing into the gastrointestinal tract, the lungs, and associated structures; also called endoderm or entoderm); blastophore (that portion of the spermatospore which is not converted into spermatoblasts, but carries them) | |||
| blastophore; hypoblast | |||
