Invagination

• Amphioxus
• Cell (biology)
• Intussusception (medical disorder)
• adenosine triphosphate
• archenteron
• blastocoel
• blastopore
• blastula
• crista
• ectoderm
• embryo
• embryology
• endocytosis
• endoderm
• epidermis
• exocytosis
• gastrulation
• germ layer
• intestine
• mesoderm
• mitochondrion
• morphogenetic
• neural crest
• organism
• tunicates
• vegetal pole