AP BIOLOGY

Detailed explanation-1: -Through reproduction, genes are passed on to offspring. This passes down the genes coding for physical characteristics suited to the new environment. Individuals less suited to the environment may not thrive and their genes are less likely to be passed onto the next generation.

Detailed explanation-2: -Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.

Detailed explanation-3: -Examples include the long necks of giraffes for feeding in the tops of trees, the streamlined bodies of aquatic fish and mammals, the light bones of flying birds and mammals, and the long daggerlike canine teeth of carnivores. All biologists agree that organismal traits commonly reflect adaptations.

Detailed explanation-4: -An adaptation is any heritable trait that helps an organism, such as a plant or animal, survive and reproduce in its environment.