Which of the following best describes it example of a specific internal response to harmful bacteria 1) skin serves as a physical barrier that prevents bacterial from entering the body. 2) saliva contains enzymes that destroy bacteria and prevents infection. 3) bacterial infection causes the release of histamine, which leads to inflation and swelling. 4) antigens trigger the production of antibodies, which mark bacteria for destruction.

Residential construction is expanding in florida, the expansion has caused fragmentation of habitats, one of the results of the increased construction is a decrease in the number of large predators such as the coyote, black bear and pool panther, which will be the most immediate local result of this fragmentation? 1)large predators will become extinct 2)decrease in middle sized predators 3)increase in population of top carnivores 4)increase in population of prey species