| A | B |
|---|
| vertebrate | an animal with a skull and backbone |
| invertebrate | an animal without a backbone |
| embryo | an organism in the earliest stage of development |
| tissue | a group of similar cells that work together |
| organ | a combination of two or more tissues |
| consumer | organisms that eat producers for energy |
| predator | an animal that eats other animals |
| prey | an organism that is eaten by another organism |
| innate behavior | influenced by genes and does not depend on learning or experience |
| learned behavior | behavior that has been learned from experience or observation |
| hibernation | period of inactivity during the winter |
| estivation | period of inactivity during the summer |
| biological clock | internal control of natural cycles |
| circadian rhythm | daily cycle |
| social behavior | interaction between animals of the same species |
| communication | transfer signal from one animal to another; results in a response |
| territory | area occupied by one animal or species from which other species are excluded |
| pheromone | a chemical produced by animals for communication |
| camouflage | blending into the background |
| warning coloration | outer covering of animals that warns other animals |
| red, yellow, orange, black, white | warning colors |
| a whale's ability to swim | innate behavior |
| Japanese macaque washing the sweet potato | learned behavior |
| Mexico | 14 million monarchs gather here |
| navigate | to find your way from one place to another |
| landmarks | fixed objects that help an animal find its way |
| courtship | special behavior that leads to mating |
| body language | a visual form of communication |
| waggle dance | done by bees to tell other bees where to find necter |
| pride | lions living together |
| sound, color, scent | how animals communicate |
