Natural Selection and Adaptation Crossword

Any structure, such as a leg or an antenna, that grows out of an animals body
An inherited behavior that helps an organism survive
A key for the identification of organisms based on a series of choices between alternative characters
Those species that have been brought under human control and that have adapted to life with humans
A change in a species over time
When a species no longer has any living individuals
A segment of DNA on a chromosome that codes for a specific trait
Response to Earth's gravity, as the growing of roots downward in the ground
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
A plant's growth response to water; plant grows towards the water
A change from within an organism, such as hunger and thirst, that causes the organism to respond
A change in a gene or chromosome
Changes in genetic traits over many generations based on an organism's ability to survive and reproduce
Anything outside the body that can cause a response in an organism