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Animals
Term | Definition |
---|---|
Homeostasis | Keeping internal body conditions stable. |
Vertebrate | Animals with a backbone. |
Invertebrate | Animals without a backbone. |
Tissue | Groups of similar cells that do certain things. |
Organ | Something made up of different tissue. |
Radical Symmetry | When a line crosses the center point in creates two mirror images. |
Bilateral Symmetry | Has one line of symmetry that divides into two halves. |
Cnidarian | Invertebrates with stinging cells that have food in their central cavity when they take it. |
Mollusk | Invertebrates that have soft, unsegmented bodies that are usually protected by a hard shell. |
Arthropod | Invertebrates with pares of jointed appendages, segmented bodies, and a hard outer covering. |
Exoskeleton | The outer covering of a Arthropod. |
Echinoderm | An invertebrates with a series of fluid-filled tubes and an inner skeleton. |
Endoskeleton | An internal skeleton. |
Adaptation | Structures and behaviors that allow animals to to do certain things. |