| A | B |
|---|
| Vertebrate | Animal that has a backbone |
| Invertebrate | Animal that does not have a backbone |
| Sexual Reproduction | Process where a new organism is the result of two separate sex cells. |
| Asexual Reproduction | Process where a new organism is the result of a parent producing a copy |
| Spicule | A sharp spine produced by sponges for structure and protection |
| Nematocyst | A stinging cell produced by cnidarians |
| Regeneration | Growth or restoration of a damaged part |
| Parasite | Organism that takes food and nutrition from its host |
| Host | An organism whose blood and nutrients are stolen by a parasite |
| Closed Circulatory System | A system where blood is in vessels. |
| Exoskeleton | Lightweight covering that supports the body of arthropods |
| Complete Metamorphosis | Development which includes an egg, larva, pupa, and an adult form in that order |
| Incomplete Metamorphosis | Development which includes an egg, larva, nypmh, and an adult in that order. |
| Cell | Basic unit of structure and function |
| Tissue | A group of cells with a specific job in the body |
| Fertilization | Union of an egg and sperm cell |
| Organ | A group of tissues which combine to perform a complex job |
| Phyla | Name given for simliar groups of organisms. This is used for classification. |
| Symmetry | Balanced arrangement of parts |
| Gill | Organ that removes oxygen from water. |
| Radula | Section of tiny teeth that scrape food off of a surface. |
| Antennae | Sensory organs for smelling, tasting, and touching |
| Hind body section of an arachnid | Abdomen |
| Molting | Process of shedding an outgrown exoskeleton |
| Spiracles | Breathing structures on insects (grasshopper) |
| Thorax | Body section of an insect that has legs and/or wings attached. |
| Water vascular system | Fluid-filled tubes within an echinoderm's body |
| Endoskeleton | Internal frame that supports the body of an animal |
| Omnivore | An animal that regularly eats plant life and meat |
| Head | The topmost portion of an insect (above the thorax) |
| Herbivore | This organism eats only plants |
| Carnivore | This organism eats only other animals |
| Omnivore | This organism can eat both plants and animals |
| Open Circulatory System | The blood is not always inside blood vessels. The blood sloshes around. |
| Anus | Opening by which waste material exits the body. |
| Scavenger | Feed on dead or decaying material |
| Organ System | The combination of many similar organs for a purpose |
| Cephalothorax | The head and body portion of an arachnid |
| Tube feet | The small extensions from Echinoderm body parts. They are essential for movement and obtaining food as well as oxygen. |
| Water Vascular System | The internal system of fluid filled tubes in echinoderms. |
