Krab. Because a skull is to protect the brain and a shell is a way to protect a krab.
CRAB is spelled with a C -- perhaps the author of the question meant to write ___K which would give us the answer YOLK as the yolk of an egg inside the shell?
The brain is protected by the skull; similarly, the shell protects the animal's body.
The brain
The cranium forms a shell-like shape around your brain to protect it from falls and summer-saults. The cranium makes a shield to your brain by stopping falls and hits to your head. This shell like shape is very hard and is very hard to break or crack, that is why it protects your brain.
The skull protects the brain.
The brain is on the inside the skull.
The collective name for the skull bones that encase the brain is the cranium. The cranium consists of several bones, including the frontal, parietal, temporal, occipital, sphenoid, and ethmoid bones. These bones form a protective shell around the brain.
If you are a human, then your brain is inside your cranium, or skull.
all of them, the brain is inside the skull
The brain is protected by the cranium (skull)
the skull protects your brain.
The skull protects and supports the brain/brain membranes, and the sense organs.
The skull is a bone. The skull protects the brain.