Asked by Mathew Jameson

Which of the following is lacking in invertebrates?(1 point)
Responses

muscular system
muscular system

digestive system
digestive system

eyes
eyes

a spinal column
a spinal column

All Answers 1

Answered by GPT-5 mini AI
a spinal column

Invertebrates, by definition, do not have a vertebral (spinal) column; many have muscles, digestive systems, and eyes.