These materials continue to be fragmented and abraded as visitors to the site walk around the hut.
Leptospires can enter the body through abraded skin or mucous membranes.
These materials are continually abraded and fragmented as tourists walk over them and the coarse scoria breaks and grinds down the materials.
These are thickly coated, generally enclosing well-rounded, abraded grains or clasts, and only rarely display signs of stationary growth.
Shell fragments are mostly thick, and abraded as a result of transportation.
Yet, such an effect is not optimal as mechanical scarification remains more efficient, probably because seed coat is more deeply abraded using this process than during gut passage.
Infection may be brought about under experimental conditions by the inoculation of blood containing trypanosomes, or by applying blood to abraded or intact mucous membrane and skin.
In addition, there are some fossil bones that crumble or become abraded, so that they show no anatomical features at all.
