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.
The bodies of most oligochaetes (earthworms) are divided externally and internally into well-defined segments. Internally, these segments are divided by membranous partitions. Except for the most anterior and posterior segments, all segments are essentially alike. Earthworms burrow through the soil, feeding on decaying leaves and animal debris. As earthworms move through the soil, they both enrich and loosen the soil. It is for this reason that earthworms are valued by gardeners. An acre of good garden soil may contain as many as 50,000 individuals. External Anatomy and Locomotion of the living earthworm Observe the external features of the earthworm. Notice that the body is made up of a number of segments.