what is an invertebrate
An invertebrate is an animal without a backbone. (An animal with a backbone is called a vertebrate.) Invertebrates live in every part of the world. In fact, most of the animals on Earth are invertebrates.Invertebrates come in all different shapes and sizes.Some can be seen only through a microscope.ponges, flatworms, jellyfish, sea. Encyclopaedia EncyclopÃ¦dia, Britannica. Inc an invertebrate is an animal without a. (Backbone an animal with a backbone is called a.) Vertebrate invertebrates live in every part of the. world