Polyps of the starlet sea anemone Nematostella vectensis.Their single body opening (mouth) is surrounded by extended tentacles. The cells producing digestive enzymes and insulin-like peptides are part ...

NICOLLE FULLER, SAYO STUDIO (1) Embryoid Bodies: In a first example of a human 3D embryo model, researchers grew ESCs on non-adhesive dishes in media without a differentiation inhibitor or growth ...

The fusion of sperm and egg gametes during human fertilization establishes a diploid zygote and initiates a series of cell divisions that result in a multicellular embryo. The blastocyst stage is ...