the hull
The outer covering of the grain is called Husk.
exskeleton
A hard outer covering protects an insect's soft body and gives the insect its shape.
Cornea
The outer covering of corn is known as the husk, which consists of green, leafy layers that protect the ears of corn as they develop on the plant. Beneath the husk, the kernels are encased in a protective layer called the pericarp, which is the hard outer shell of each individual kernel. Together, these layers help shield the corn from pests and environmental factors.
exoskeleton
A lot of animals have hard body covering which makes them hard to become prey. However, animals such as hippopotamus, rhinoceros, and elephants have a hard cover of skin on their body.
capsule
Warmer
A Guppy is a tropical fish, and has an outer covering of fish-scales.
the hull
calabashes un lng alam ko........... LARA_12 :)