Question

1. First line defenses include

skin

hair

mucus

all of the above

2. Skin protects a person from pathogens by _______________.

being thin and easy to allow things through

shedding occasionally

serving as a protective layer that keeps foreign objects out

allowing bacteria to enter if it is healthy

3. Which parts of the respiratory system keep pathogens from reaching the inside of your body? (select all that apply)

nose hair

lungs

mucus

blood

4. Select 3 ways that your digestive system works to protect you from pathogens that have entered your body on food?

by using stomach acids to neutralize the pathogen

causing you to vomit

causing you to have diarrhea

causing you to burp

Answer 1

Question No.1

Answer :- All of the above

Explanation : First line defenses are always active and protect us from a vast majority of microbes in the environment . This includes skin, tears, mucus, cilia, stomach acid, urine flow etc

Question No.2

Answer :- serving as a protective layer that keeps foreign objects out.

Explanation : Skin is the largest protective organ in our body that from a protective layer on the outer surface of the skin that keep foreign particle out and protect the body from various type of infection.

Question No.3

Answer :- Mucus

Question No.4

Answer ;- by using stomach acids to neutralize the pathogen

causing you to vomit

causing you to have diarrhea ...