Question | Answer |
Appendage | Any structure, such as a leg or an antenna, that grows out of an animals body |
Behavioral Adaptation | An inherited behavior that helps an organism survive |
Dichotomous Key | A key for the identification of organisms based on a series of choices between alternative characters |
Domestic Animals | Those species that have been brought under human control and that have adapted to life with humans |
Evolution | A change in a species over time |
External Stimulus | Anything outside the body of the organism that can cause a response in an organism |
Extinction | When a species that no longer has any known living individuals. |
Genes | A segment of DNA on a chromosome that codes for a specific trait |
Geotropism | Response to earth's gravity, as the growing of roots downward in the ground |
Homeostasis | A tendency to maintain a balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular level |
Hydrotropism | A plants growth response to water; plant grows towards the water |
Internal Stimulus | A change from within an organism, such as hunger and thirst, that causes the organism to respond |
Mutation | A change in a gene or chromosome |
Natural Selection | Changes in genetic traits over many generations based on organism's ability to survive and reproduce |
Phototropism | Plant growth in response to light |
Physiology | The study of how the physical structures of an organism function |
Response | A reaction to a stimulus |
Selective Breeding | The man-made process of selecting a few organisms with desired traits to serve as parents of the next generation |
Stimulus | A change in an organism's surroundings that causes the organism to react |
Structural Adaptation | A physical feature that helps an organism survive in it's environment |
Variation | Any difference between individuals of the same species |
Xylem | Name the tissue that transports water |