Select the vertebrate.
trapdoor spider nautilus red-headed poison frog golden orb-weaver
Hint: Mammals, birds, fish, reptiles, and amphibians are vertebrates.
Vertebrates and invertebrates are both groups of animals.
A vertebrate has a backbone. The backbone is made of many bones in an animal's back. A vertebrate's backbone helps connect the different parts of its body. In the drawings below, each vertebrate's backbone is colored orange.
An invertebrate does not have a backbone. In fact, invertebrates do not have any bones! Some invertebrates have an outer cover on their body called an exoskeleton. Other invertebrates have a soft body.
A nautilus is a mollusk. Like other mollusks, a nautilus is an invertebrate. It does not have a backbone.
Like other spiders, a golden orb-weaver is an invertebrate. It does not have a backbone. It has an exoskeleton.
Like other spiders, a trapdoor spider is an invertebrate. It does not have a backbone. It has an exoskeleton.
A red-headed poison frog is an amphibian. Like other amphibians, a red-headed poison frog is a vertebrate. It has a backbone.