The lowest possible temperature, or absolute zero as it is called, is -459.67Â°F (-273.15Â°C). It is also called 0 kelvin, a scale with increments equivalent to degrees of Celsius, but which uses absolute zero rather than water's freezing point as its starting point.
Founder Effect: When a new colony of individuals is started from just a few members of the original population. All of the offspring will have the similar traits as the âfounders.â Genetic drift can cause big losses of alleles from the gene pool of small populations. When a population Population bottlenecks occur when a population's size is reduced for at least one generation.
Bottleneck Effect Key Concepts. To approach questions about the bottleneck effect on the AP exam, focus on the key features of the process and context clues that might give away the right answer. The key features of the bottleneck effect: â¢ Drastic reduction in population size â¢ Loss of genetic diversity. Context clues to look for: