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.
Prezygotic Isolating Mechanisms prevent the formation of viable zygotes. Ecological Isolation The geographic ranges of two species overlap, but their ecological needs or breeding requirements differ enough to cause reproductive isolation.