Cats have sharp teeth and claws. They can run fast and climb trees.
the structures of defense can be their claws and sharp teeth
Naturally developed structures that a cheetah uses fo its defense are its spots for camoflage, large chest cavity and slim body to help it run fast, its claws do not retract to help it grip the ground better and in fact the cheetah is the only large cat whos claws do not retract.
Stinging cells
It's neck
many minds
The function of cat's pes is to kill people in their defense of food being. This the defense mechanism that this uses.
Lionfish have poisonous spines.
it's hard shell
defend other creatures
teeth and claws
The structures that are retroperitoneal in a cat's urinary system are the kidneys, the ureters, and the urinary bladder. Retroperitoneal means that these structures can be found behind the peritoneum.
barbed structures known as trichocysts