Question

choose the best answer for each question.

1. what is the second line of defense called?

a. immune response b. inflammatory response
c. digestive response d. respiratory response

1. what happens during the inflammatory response?

a. skin becomes dry b. pathogens are digested
c. antibodies are produced d tissues swell, turn red, and become sore

1. what kills pathogens in the mouth and stomach?

a. mucus b. hair
c. saliva and acid d. antibodies

1. what traps and filters pathogens in the breathing passages?

a. saliva and acid b. t - cells
c. antibodies d. hair and mucus

1. how does the digestive system help the immune system?

a. by filtering air b. by producing antibodies
c. by killing pathogens d. by transporting oxygen

1. what is a pathogen?

a. a type of white blood cell b. a protein that fights disease
c. an organism that causes sickness d. a part of the digestive system

1. what is the role of the respiratory system in immunity?

a. to produce antibodies b. to trap and filter pathogens in airways
c. to digest pathogens d. to deliver nutrients

1. what is the first line of defense in the immune system?

a. white blood cells b. antibodies
c. skin, breathing passages, mouth & stomach d. fever

1. what is the main function of the immune system?

a. to digest food b. to deliver oxygen
c. to get rid of pathogens and bacteria d. to produce energy

1. which system helps deliver white blood cells to fight pathogens?

a. respiratory system b. nervous system
c. digestive system d. circulatory system

Explanation:

1. The second line of defense in the immune system is the inflammatory response.
2. During the inflammatory response, tissues swell, turn red, and become sore.
3. Saliva and acid in the mouth and stomach kill pathogens.
4. Hair and mucus trap and filter pathogens in the breathing passages.
5. The digestive system helps the immune system by killing pathogens.
6. A pathogen is an organism that causes sickness.
7. The role of the respiratory system in immunity is to trap and filter pathogens in airways.
8. The first line of defense in the immune system is skin, breathing passages, mouth & stomach.
9. The main function of the immune system is to get rid of pathogens and bacteria.
10. The circulatory system helps deliver white blood cells to fight pathogens.

Answer:

1. B. Inflammatory response
2. D. Tissues swell, turn red, and become sore
3. C. Saliva and acid
4. D. Hair and mucus
5. C. By killing pathogens
6. C. An organism that causes sickness
7. B. To trap and filter pathogens in airways
8. C. Skin, breathing passages, mouth & stomach
9. C. To get rid of pathogens and bacteria
10. D. Circulatory system