These piers are usually 16âx16â and are designed to support the floor, wall and roof loads. In between the piers are one brick thick walls called âcurtain walls.â It is not meant to support the house, but is just there to close in the basement or crawlspace, keep it dry and keep out the critters.
Gametogenesis is a biological process by which diploid or haploid precursor cells undergo cell division and differentiation to form mature haploid gametes.nimals produce gametes directly through meiosis in organs called gonads (testicle in males and ovary in females). Males and females of a species that reproduces sexually have different forms of gametogenesis. 1  spermatogenesis (male). 2  oogenesis (female).
Spermatogenesis is the process in which male haploid germ cells are  produced from diploid spematogonial stem cells by way of mitosis  and meiosis.This occurs in the same â¦ way in rats in the  seminiferous tubules boundaries of the testes. Aaron McClellan.permatogenesis is the process during which spermatozoa cells are  produced. They are critical in the process of meiosis, which is  responsible for reproduction in animals a â¦ nd plants.