First, the individual CFA filters are usually layers of transmissive (absorptive) organic or pigment dyes. Absorption into the intestinal absorptive cells is not the end. Gastric mucosa cells change to resemble intestinal mucosa and may even assume absorptive characteristics. The ductuli are unilaminar and composed of columnar ciliated and non-ciliated (absorptive) cells. It is synthesized in the absorptive cells of the small intestine from polyglutamylated dietary folate. This is the most nutrient absorptive section of the small intestine. Neutral density (ND) filters come in two types&colon; absorptive and reflective. After the lint filter, the solvent passes through an absorptive cartridge filter. They are subsequently moved to absorptive enterocyte cells lining the intestines. Walls that are made of absorptive material mitigate sound differently than hard surfaces. Absorptive filters are usually made of tinted glass. Entry then occurs by the less selective process of absorptive pinocytosis. Fund pollutants are those for which the environment has the moderate absorptive capacity. Pollutants, towards which the environment has low absorptive capacity are called "stock pollutants". Zahra and George presented the potential absorptive capacity is made of two elements.