The shell of Nautilus is

A structure peculiar to Nautilus is

A structure peculiar to Nautilus is

A structure peculiar to Nautilus is

Tusk shell is a

The outermost shell of an atom is also called the _______ shell

The outermost shell of an atom is called its__________ and the electrons present in the outermost'shell are called __________

Siphuncle of nautilus

Siphuncle of nautilus

Siphuncle of nautilus