Changes

choice1="They have a horizontal fracture plane through the body."

choice1="They have a horizontal fracture plane through the body."

choice3="They have a vertical fracture plane through the body."

choice3="They have a vertical fracture plane through the body."

choice2="They lack the neural arch of the tail vertebrae."

choice2="They lack part of the neural arch of the tail vertebrae."

choice4="They have a single occiptal condyle"

choice4="They have a single occiptal condyle"

choice5="They have ribs on tail and cervical vertebrae."

choice5="They have ribs on tail and cervical vertebrae."