Decide whether the statements below about the body's first line of defence are true or false. If you think that they are TRUE, record the letter in the answer. (Use upper case, no commas and keep them in the order of the statements).
A) Most pathogens have to get inside a person's body to spread infection. Once in the body, they have ideal living conditions: food, water, warmth.
B) The skin is the body's physical natural barrier. It covers part of the body and protects it from physical damage, microbe infection, and dehydration.
C) One form of defence is the hydrochloric acid in our lungs, which destroys microorganisms when swallowed and protects against food poisoning.
D) The body has defences in place to try to stop the invading pathogens. These include the skin, digestive system, and respiratory system.
*2 points