 
 <translate> Vertebrate chordates have a backbone. Invertebrates are animals who lack a backbone or spinal column. Vertebrate chordates have a spinal column.
Thus, the answer is (A). <hau> Kwararrun ƙwayoyin cuta suna da kashin baya. Invertebrates dabbobi ne da basu da kashin baya ko kashin baya. Masu haɗin gwiwar vertebrates suna da kashin baya. Saboda haka, amsar ita ce (A). 