Animals that have no internal backbone, and whose skeleton is usually located on the exterior of the body rather than the interior, are called:

Question

​Animals that have no internal backbone, and whose skeleton is usually located on the exterior of the body rather than the interior, are called:

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Invertebrates are animals that lack a backbone or vertebral column. They may have an exoskeleton made of chitin, such as insects or crustaceans, or a hard outer shell, such as mollusks. The opposite of invertebrates are vertebrates, which have an internal skeleton made up of a series of bones called vertebrae. Endoskeleton refers to the internal skeleton of vertebrate animals, while protists are a diverse group of mostly single-celled organisms that do not fall under the category of animals.

​Animals That Have No Internal Backbone, and Whose Skeleton Is

Animals That Have No Internal Backbone, and Whose Skeleton Is