Which of the following traits is not a characteristic of animals? A- Multicellular body structure B- Composed of cells with cell walls C- Heterotrophic food-getting pattern D- Composed of eukaryotic cells 2. Which of the following describes the MOST important difference between invertebrates & vertebrates? A- Vertebrates contain multiple tissues, while invertebrates do not B- Invertebrates contain multiple tissues, while vertebrates do not C- Vertebrates contain a backbone, while invertebrates do not D- Invertebrates contain a backbone, while vertebrates do not Need Help!
"A- Multicellular body structure" would technically not be a characteristic of animals since there can exist single-celled organisms, from which all life actually came.