ANATOMY

Detailed explanation-1: -Which can be used to prevent initial entry of bacteria into the body? inflammation oil fever lymphocytes. Inflammation can be used to prevent the initial entry of bacteria into the body. Thus, the correct option is A.

Detailed explanation-2: -Natural barriers include the skin, mucous membranes, tears, earwax, mucus, and stomach acid. Also, the normal flow of urine washes out microorganisms that enter the urinary tract.

Detailed explanation-3: -Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease, which typically happens in a small proportion of infected people, occurs when the cells in your body are damaged as a result of infection, and signs and symptoms of an illness appear.

Detailed explanation-4: -Skin, tears and mucus are part of the first line of defence in fighting infection. They help to protect us against invading pathogens. You have beneficial bacteria growing on your skin, in your bowel and other places in the body (such as the mouth and the gut) that stop other harmful bacteria from taking over.

Detailed explanation-5: -Avoid close contact with people who are sick. Cover coughs and sneezes. Avoid touching your face. Stay home if you’re sick. Clean and disinfect surfaces that are touched often. Avoid contaminated food and water.