The results of the items on social stress are presented in Table 3. The Index of Social Stress (ISS) was generated through the use of five derived variables using the 2000 census data. Social defeat and subordination as models of social stress in laboratory rodents: A review.
A bobcat has many defense mechanisms that they can use against  their predators. These defense mechanisms include their sharp  claws, sharp dagger style teeth, ferocious gro â¦ wl, concealment  capabilities, and keen sense of sight.1 person found this useful. bobcat has many defense mechanisms that they can use against  their predators. These defense mechanisms include their sharp  claws, sharp dagger style teeth, ferocious gro â¦ wl, concealment  capabilities, and keen sense of sight. 1 person found this useful.
Innate immunity provides the first line of defense against invading bacteria. The skin and mucous membranes provide physical and chemical barriers to infection. The normal bacterial flora antagonize colonization of body surfaces by nonindigenous bacteria.The internal tissues invariably contain bactericidal substances.he structural integrity of the body surfaces, i.e., the skin and mucous membranes, forms an effective barrier to initial lodgment or penetration by microorganisms. The skin is a very effective barrier to bacterium, so that no bacterium by itself is known to be able to penetrate unbroken skin.