This is a less preferred form of foundation for Utilihab use but does allow for its use with some alternative materials, such as stacked stone, soil-cement, clay block, and compressed earth block.
Gametic isolation refers to a set of circumstances whereby gametes are isolated or separated from their matches by a medium or distance. This description also refers indirectly to reproductive isolation, in which a gamete cannot interact with the gametes of another species.
Supplement. Genetic isolation may be the result of geographic isolation or of other isolation mechanisms that prevented successful reproduction. This may lead to speciation (formation of new species) and endangering species to extinction due to a small gene pool.