part a write the letter of the answer that correctly completes each sentence.
_____ 1. _____ cause infectious diseases.
a pathogens c antibodies
b vaccines d minerals
_____ 2. the body’s most important defense against infectious diseases is the _____.
a vaccine c endocrine system
b immune system d food guide pyramid
_____ 3. protein is _____ that cells use to reproduce and repair themselves.
a a vaccine c a mineral
b an antibody d a nutrient
_____ 4. an important habit to help you stay healthy is _____.
a daily exercise c avoiding drugs
b relieving stress d all of the above
_____ 5. _____ is a type of germ that is not living.
a an antibody c a pathogen
b a virus d a phagocyte
part b match the terms in column a with the descriptions in column b.
write the letter of the correct answer on the line.
column a
_____ 6. plague
_____ 7. phagocyte
_____ 8. antibody
_____ 9. lymphocyte
_____10. sanitation
_____11. vaccine
_____12. carbohydrate
_____13. vitamin
_____14. bacteria
_____15. mineral
column b
a main nutrient that the body uses for energy
b nutrient that forms in the earth
c white blood cell that produces antibodies
d causes the body to make antibodies against a specific pathogen
e nutrient that is found in foods in small amounts
f white blood cell that surrounds and destroys pathogens
g the practice of keeping things clean
h material in the body that fights a specific pathogen
i infectious disease that spreads quickly
j a pathogen that causes disease

Question

part a write the letter of the answer that correctly completes each sentence.
_____ 1. _____ cause infectious diseases.
    a pathogens                     c antibodies
    b vaccines                      d minerals
_____ 2. the body’s most important defense against infectious diseases is the _____.
    a vaccine                       c endocrine system
    b immune system                 d food guide pyramid
_____ 3. protein is _____ that cells use to reproduce and repair themselves.
    a a vaccine                     c a mineral
    b an antibody                   d a nutrient
_____ 4. an important habit to help you stay healthy is _____.
    a daily exercise                c avoiding drugs
    b relieving stress              d all of the above
_____ 5. _____ is a type of germ that is not living.
    a an antibody                   c a pathogen
    b a virus                       d a phagocyte
part b match the terms in column a with the descriptions in column b.
write the letter of the correct answer on the line.
column a
_____ 6.  plague
_____ 7.  phagocyte
_____ 8.  antibody
_____ 9.  lymphocyte
_____10.  sanitation
_____11.  vaccine
_____12.  carbohydrate
_____13.  vitamin
_____14.  bacteria
_____15.  mineral
column b
    a   main nutrient that the body uses for energy
    b   nutrient that forms in the earth
    c   white blood cell that produces antibodies
    d   causes the body to make antibodies against a specific pathogen
    e   nutrient that is found in foods in small amounts
    f   white blood cell that surrounds and destroys pathogens
    g   the practice of keeping things clean
    h   material in the body that fights a specific pathogen
    i   infectious disease that spreads quickly
    j   a pathogen that causes disease

Accepted Answer

### Part A
1.
# Brief Explanations:
Pathogens are microorganisms or agents that cause infectious diseases. Vaccines prevent diseases, antibodies fight infections, and minerals are nutrients. So the correct answer is A.
# Answer:
A. Pathogens

2.
# Brief Explanations:
The immune system defends the body against infectious diseases. Vaccines are a preventive measure, the endocrine system regulates hormones, and the Food Guide Pyramid is about nutrition. So the correct answer is B.
# Answer:
B. immune system

3.
# Brief Explanations:
Protein is a nutrient that cells use for reproduction and repair. Vaccines prevent diseases, antibodies fight infections, and minerals are inorganic nutrients. So the correct answer is D.
# Answer:
D. a nutrient

4.
# Brief Explanations:
Daily exercise, relieving stress, and avoiding drugs are all important healthy habits. So the correct answer is D.
# Answer:
D. all of the above

5.
# Brief Explanations:
Viruses are non - living germs (they have a different nature of "life" compared to other pathogens). Antibodies fight infections, pathogens are disease - causing agents (most are living), and phagocytes are cells. So the correct answer is B.
# Answer:
B. A virus

### Part B
6.
# Brief Explanations:
Plague is an infectious disease that spreads quickly. So it matches with option I.
# Answer:
I

7.
# Brief Explanations:
Phagocytes are white blood cells that surround and destroy pathogens. So it matches with option F.
# Answer:
F

8.
# Brief Explanations:
Antibodies are materials in the body that fight specific pathogens. So it matches with option H.
# Answer:
H

9.
# Brief Explanations:
Lymphocytes are white blood cells that produce antibodies. So it matches with option C.
# Answer:
C

10.
# Brief Explanations:
Sanitation is the practice of keeping things clean. So it matches with option G.
# Answer:
G

11.
# Brief Explanations:
Vaccines cause the body to make antibodies against specific pathogens. So it matches with option D.
# Answer:
D

12.
# Brief Explanations:
Carbohydrates are the main nutrient the body uses for energy. So it matches with option A.
# Answer:
A

13.
# Brief Explanations:
Vitamins are nutrients found in foods in small amounts. So it matches with option E.
# Answer:
E

14.
# Brief Explanations:
Bacteria are pathogens that cause disease. So it matches with option J.
# Answer:
J

15.
# Brief Explanations:
Minerals are nutrients that form in the earth. So it matches with option B.
# Answer:
B

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QUESTION IMAGE

Question

Explanation:

Part A

Answer: