Many women with BV do not have symptoms. If you do have symptoms, you may notice a thin white or gray vaginal discharge, odor, pain, itching, or burning in the vagina. Some women have a strong fish-like odor, especially after sex.
Mix and aggregate soil. As they consume organic matter and mineral particles, earthworms excrete wastes in the form of casts, a type of soil aggregate. Charles Darwin calculated that earthworms can move large amounts of soil from the lower strata to the surface and also carry organic matter down into deeper soil layers.
This soil food web is the basis of healthy, living soil. Significant soil organisms involved in the soil food web include: 1) bacteria, 2) fungi, 3) protozoa, 4) nematodes, 5) arthropods, and 6) earthworms. 1  Bacteria â Bacteria are simple, single-celled microorganisms.2  Bacteria inhabit a wide variety of habitats, including soil. The bacteria contain more nitrogen than the protozoa can utilize and some ammonium (NH4) is released to plants. 2  Protozoa also prevent some pathogens from establishing on plants and function as a food source for nematodes in the soil food web. 3  Nematodes â Nematodes are small, unsegmented round worms.