The lithosphere sits on top of the asthenosphere.
The Bottleneck Effect occurs when there is a disaster of some sort that reduces a population to a small handful,Genetic drift<span> can cause big losses of </span>genetic variation for small populations, and A founder effect is an EVOLUTIONARY PROCESS THAT RESULTS FROM A FOUNDING EVENT. They are all similar because they all similar because they all <span>effect result in a small population with a subset of the genetic diversity of the original population. </span>
The answer to the question is letter B
The phosphate enters the ecosystem and becomes tied up in the biogeochemical system where it is recycled. The rapid growth of aquatic vegetation or increases in the algal population can cause the death and decay of vegetation and aquatic life because of the decrease in the dissolved oxygen levels