Which of these is a sequence of defense for fighting off a pathogen? tears → fever → antibodies. fever → T-cells → saliva. ear wax → B-cells → inflammation. inflammation → tears → antigens

Astructural difference between the trachea and esophagus that prevents the trachea from collapsing is the presence of: a) smooth muscle b) skeletal muscle c) respiratory cilia d) rings of cartilage

For which locations does the occupational safety and health administration (osha) enforce safety? kitchens in private homes ,backyard farms ,community malls, personal art studios

The nutrient facts label on a food package lists the following: iron 50%. what does this figure indicate?