coat or capsid
protective shell in marine foraminiferans
No. There is nothing poisonous about the armadillo's protective shell.
its claws and shell
it's shell..
Their outer protective shell
A protective shell around a virus
A protective shell is a covering that provides defense or security. In nature, it refers to the hard outer layer that certain animals like turtles and snails have for protection. In technology, a protective shell could be a case or enclosure designed to shield a device from damage.
envelope
Atmosphere
A tortoise or turtle.
they hide in their protective armour, their shell.
By developing a protective shell