WITHOUT A BACKBONE Crossword Clue
WITHOUT A BACKBONE Crossword Clue
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Crossword Puzzle Infos
Without a backbone is a term used to describe an organism that does not have a backbone or spinal column. This term is most commonly used to refer to animals in the INVERTEBRATE group, which includes organisms such as insects, worms, mollusks, and jellyfish. Invertebrates make up the majority of the animal kingdom, with over 95% of all known animal species being invertebrates.