کیتین
type: Concept
preferred label: chitin @en
related: آزمون

پوسته
type: Concept
preferred label: shell @en
related: آزمون

بی‌مهرگان
type: Concept
preferred label: invertebrata @en
related: آزمون

آزمون
type: Concept
preferred label: test @en
related: بی‌مهرگان
related: کیتین
related: پوسته