In poriferans, the skeleton is made up of

Nylon is made up of

Cytoskeleton is made up of

Cytoskeleton is made up of :

Axial skeleton is made up of

Axial skeleton in made up of

In man the axial skeleton is made up of

In man the axial skeleton is made up of

In man the axial skeleton is made up of

Assertionn : Cockroaches remain hidden and inactive during day while they become active at night. Reasonn : Cockroaches have an outer hard skeleton which is made up of different units joined together .