Other causes of prostate enlargement include prostate cancer and prostate infection (prostatitis). Causes of blockage of the urethra that can occur in both sexes include scar tissue, injury (as in a car wreck or bad fall), blood clots, infection, tumors in the pelvic region, and stones (rare).
Cast Fossils: an imprint that is filled in, then fossilized Permineralization: process in which an organism dies and sediment enters the body, filling in the pores of a leaf, or a bone or a shell Whole Body Preservation: occurs when the total organism is fossilized; may occur through freezing or falling in tree amber
1 mold fossils (a fossilized impression made in the substrate-a negative image of the organism). 2  cast fossils (formed when a mold is filled in). 3  trace fossils = ichnofossils (fossilized nests, gastroliths, burrows, footprints, etc.). 4  true form fossils (fossils of the actual animal or animal part).