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Animals Lesson 1 - 4

QuestionAnswer
Homeostasis Keeping internal body conditions stable
Adaptions Structures and behaviors that allow animals to perform their functions
Vertebrates an animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes.
Invertebrates an animal lacking a backbone
Tissue A group of similar cells that perform specific function
Organ a part of an organism that is made up of many tissues
Radial symmetry symmetry around a central axis, as in a starfish
Bilateral symmetry the property of being divisible into symmetrical halves on either side of a unique plane.
Cnidarians Invertebrates that have stinging cells and take food into the central body cavity
Sponges Asymmetrical invertebrates that have specialized cells but no tissues or organs
Mollusks Invertebrates with soft, unsegmented bodies that are often protected by a hard shell
Arthropods Invertebrates that have hard outer covering, segmented bodies, and pairs of jointed appendages
Exoskeleton The outer covering
Echinoderm Invertebrate that has an internal skeleton and a system of fluid-filled tubes
Endoskeleton And internal skeleton
Created by: KodaFabian