The word "inverts" refers to organisms without a vertebral column. Other synonyms for this word include "arthropods," "invertebrates," and "non-vertebrates." Arthropods are creatures with segmented bodies, such as insects, crustaceans, and spiders. Invertebrates are animals that do not have a backbone, like jellyfish, clams, and worms. Non-vertebrates, on the other hand, encompass both invertebrates and other organisms that do not have a spinal column, such as sponges and fungi. Regardless of which term is used, it is important to remember that these creatures come in countless shapes, sizes, and forms and play a vital role in our planet's ecosystem.