MAIN+CHARACTERISTICS+OF+VERTEBRATES

__//**MAIN CHARACTERISTICS OF VERTEBRATES:**//__
 * 1) THEY HAVE AN **INTERNAL SKELETON** OR **ENDOSKELETON** THAT INCLUDES A **BACKBONE OR VERTEBRAL COLUMN.**
 * 2) THEY HAVE **BILATERAL SYMMETRY.**
 * 3) IN GENERAL, THEY HAVE **FOUR LIMBS**. LIMBS CAN BE IN THE FORM OF LEGS, WINGS, ARMS OR FINS.
 * 4) THE NERVOUS SYSTEM CONSISTS OF THE **BRAIN** (FOUND INSIDE THE CRANIUM), THE **SPINAL** **CORD** (LOCATED IN THE BACKBONE) AND THE **NERVES**.
 * 5) THEIR **SENSE ORGANS** ARE MAINLY LOCATED IN THE HEAD