Vertebrates And Invertebrates Study Guide
Animal classification is a matter of sorting out similarities and differences, of placing animals in groups and then breaking those groups apart into subgroups. The whole endeavor creates a structure—a hierarchy in which the large high-level groups sort out bold and obvious differences, while the low-level groups tease apart subtle, almost imperceptible, variations. This sorting process enables scientists to describe evolutionary relationships, identify shared traits, and highlight unique characteristics down through the various levels of animal groups and subgroups. Among the most basic criteria by which animals are sorted is whether or not they possess a backbone. This single trait places an animal into one of just two groups: the vertebrates or the invertebrates and represents a fundamental division among all animals alive today as well as those that have long ago disappeared. If we are to know anything about an animal, we should first aim to determine whether it is an invertebrate or a vertebrate. We'll then be on our way to understanding its place within the animal world.
Difference Between Vertebrates And Invertebrates
Invertebrate – an animal with no backbone. Vertebrate – an animal with a backbone. Tentacle – a slender, flexible body part used to touch, hold,.
Vertebrates And Invertebrates Study Guide
- In this lesson, learn what makes a vertebrate animal different from an invertebrate animal. In addition to definitions, examples of each animal.
- 4th Grade Vertebrate and Invertebrate Study Guide L.4.1.2 Vocabulary: Invertebrates – organisms that do not have a backbone Vertebrates – organisms that have a backbone.