Why is a hissing cockroach an invertebrate?

Answer 1

The hissing cockroach is classified as an invertebrate because it has an external skeleton. All cockroaches have external skeletons. An external skeleton is called an "exoskeleton."

The word vertebrate is derived from the Latin, vertebrus, simply meaning, "jointed." By convention scientists classify only species of animals with internal backbones as vertebrates, though. People, or homo sapiens, for example are included in the vertebrate classification, along with cats, mice, dogs, horses and all other animals having an internal skeleton with a backbone.

As you can see, scientists like to classify a thing in many different ways. So in addition to being an invertebrate, the hissing cockroach--and all other cockroaches--are of the Kingdom Animalia, the Phylum Arthropoda, Class Insecta, and Order Blattodea. The Order name is derived from the Greek word, "blatta."

Answer 2

yes