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Raczkowski- Animals
| Question | Answer |
|---|---|
| Vertebrate | an animal with a skull and a backbone; includes mammals, birds, reptiles, amphibians and fish. |
| Invertebrate | an animal without a backbone |
| Consumer | an organism that eats producers or other organisms for energy |
| Predator | an organism that eats other organisms |
| prey | an organism that is eaten by another organism |
| innate behavior | a behavior that is influenced by genes and does not depend on learning |
| learned behavior | a behavior that has been learned from experience |
| hibernation | a period of inactivity that some animals experience in winter that allows them to survive on stored body fat |
| estivation | a period of reduced activity that some animals experience in summer |
| biological clock | internal control of natural cycles |
| circadian rhythm | a natural daily cycle |
| social behavior | the interaction between animals of the same species |
| communication | the transfer of a signal from one animal to another that results in some type of response |
| territory | an area occupied by one animal or a group of animals from which other members of the species are excluded |
| pheromone | a chemical produced by animals for communication |
| bilateral symmetry | a body plan in which two halves of an organism's body are mirror images of each other |
| radial symmetry | a body plan in which the parts of the body are arranged in a circle |
| asymmetrical | without symmetry |
| without symmetry | group of nerve cells |
| open circulatory system | a circulatory system consisting of a heart that pumps blood through spaces called sinuses |
| closed circulatory system | a circulatory system in which a heart circulates blood through a network of vessels that forms a closed loop |
| segmented exoskeleton | an external skeleton made up of protein and chitin where segments grow together |
| mandible | a jaw found on some arthropods |
| complete metamorphosis | consists of four stages: egg, larve, pupa and adult |
| metamorphosis | consists of three stages: egg, nymph and adult |
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