Immune Systems
3 years ago
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  • Question 1
    30 seconds
    Q.  Like all other body systems, the immune system helps the body maintain homeostasis.  Which statement best describes how the immune system does this?  
    answer choices
    it protects other organs and tissues from infection and disease
    it breaks down food to provide cells with nutrients
    it gathers information through the senses and controls all other body systems
     it transports oxygen and carbon dioxide
  • Question 2
    30 seconds
    Q. The picture below illustrates one internal part of the body’s immune system. What process is illustrated in the picture?  
    answer choices
    a skin cell destroying germs.
    inflammation near an opened wound
    a white blood cell destroying pathogens
    mucus in the lungs destroying pathogens
  • Question 3
    30 seconds
    Q. What do scientists call bacteria and viruses that can make people sick?  
    answer choices
  • Question 4
    30 seconds
    Q. Jorge has a cold but feels well enough to study with his friends Lisa and Jin. Lisa and Jin become sick. Which term describes Jorge’s condition when he was studying with his friends?  
    answer choices
  • Question 5
    30 seconds
    Q.  Liz notices that shortly after cutting her arm accidentally the area around the cut is turning red and feeling hot.  Which immune system defense is Liz experiencing?  
    answer choices
    white blood cell clotting
  • Question 6
    30 seconds
    Q. Diseases are passed from human to human by these four types of germs: 
    answer choices
    Viruses, influenza, HIV, and vaccines
    Viruses, bacteria, fungi, and parasites
    Viruses, cancers, mutagens, and DNA
    Viruses, blood, pollutants, and symptoms
  • Question 7
    30 seconds
    Q. Which answer best describes how infectious diseases get transmitted (passed on)?  
    answer choices
    people can sneeze or cough and pass disease on through the air
    drinking water can be contaminated with diseases
    objects such as doorknobs and towels can be contaminated by disease
    all of the above answers are ways that diseases are transmitted
  • Question 8
    30 seconds
    Q. The human body has both internal and external defense against disease.  Which of these includes only internal defenses?  
    answer choices
    hair and inflammation
    white blood cells and sweat
    inflammation and white blood cells
    skin and mucus
  • Question 9
    30 seconds
    Q. Erick wants to avoid exposure to infectious disease as much as possible.  Which strategy can best help him do this?  
    answer choices
    eat a balanced diet
    wash his hands regularly
    wear sunscreen outside
    exercise several days a week
  • Question 10
    30 seconds
    Q. Scientists are testing the effectiveness of 3 different viral medicines (or vaccines) in protecting against the common cold.  They sign up 1,200 human volunteers and split them into three groups.  So each group of 400 people is given one of the vaccines.  The groups are studied for five years and the scientists record how many colds they get each year.  What is the dependent variable in this investigation?  
    answer choices
    different viral medications
    the type of common cold virus
    the number of years
    the number of colds each year
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