concepts
type: Collection
type: ConceptGroup
member: gonads

endocrine glands
type: Concept
narrower: gonads

gonads
type: Concept
broader: reproductive system
broader: endocrine glands
narrower: testes
narrower: ovaries

ovaries
type: Concept
broader: gonads

reproductive system
type: Concept
narrower: gonads

testes
type: Concept
broader: gonads