Don't you need height and age for this as well?
Media- the communication outlets or tools
used to store and deliver information or data. The term refers to components of the mass media communications industry.
Culture- the customary beliefs, social forms, and material traits of a racial, religious, or social group.
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils. Hope this helps.