Select the invertebrate.
A: black widow spider
B: blue jay
C: wombat
D: common snapping turtle
A blue jay is a bird. Like other birds, a blue jay is a vertebrate. It has a backbone.
Like other spiders, a black widow spider is an invertebrate. It does not have a backbone. It has an exoskeleton.
A common snapping turtle is a reptile. Like other reptiles, a common snapping turtle is a vertebrate. It has a backbone.
A wombat is a mammal. Like other mammals, a wombat is a vertebrate. It has a backbone.