AP BIOLOGY

Detailed explanation-1: -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-2: -Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. Others are abiotic, like space, temperature, altitude, and amount of sunlight available in an environment.

Detailed explanation-3: -Because resources are limited, more organisms are born than can survive: some individuals will be more successful at finding food, mating or avoiding predators and will have a better chance to thrive, reproduce, and pass on, their DNA. Small variations can influence whether or not an individual lives and reproduces.

Detailed explanation-4: -When resources are limited, “competition, ” increases and some populations of organisms will decrease. Some individuals may even be weaker or smaller without the resources they need. Natural disasters, environmental changes, and humans can all have an effect on the availability of resources.