Question

directions compare and contrast each pair. tell how they are alike and how they are different.

1. phagocyte—lymphocyte
2. pathogen—antibody
3. vaccines—sanitation methods

directions use words from the word bank to answer the questions.
word bank
cowpox infectious disease pathogen plague sanitation virus
immune system lymphocytes phagocyte polio smallpox vaccine

1. what is an illness that can pass from one person to another?
2. what term is used to describe an infectious disease that spreads quickly and kills many people?
3. what is another name for a germ?
4. what is a nonliving pathogen?
5. what disease disabled or killed many children in the 1900s?
6. what white blood cells destroy pathogens?
7. what white blood cells makes antibodies?
8. what is the body’s most important defense against infectious diseases?
9. what do doctors give to help the body make antibodies before a pathogen enters the body?
10. for what disease was the first vaccine made?
11. what pathogen did edward jenner use to make the smallpox vaccine?
12. what is the practice of keeping things clean to prevent infectious diseases called?

Explanation:

1. Phagocyte - Lymphocyte:

• Alike: Both are white - blood cells involved in the immune response.
• Different: Phagocytes engulf and digest pathogens, while lymphocytes produce antibodies or directly attack infected cells.

1. Pathogen - Antibody:

• Alike: Both are related to the immune system's response to disease.
• Different: A pathogen is a disease - causing agent, while an antibody is a protein produced by the immune system to fight pathogens.

1. Vaccines - Sanitation Methods:

• Alike: Both are used to prevent infectious diseases.
• Different: Vaccines stimulate the immune system to produce immunity, while sanitation methods reduce the presence of pathogens in the environment.

1. An illness that can pass from one person to another is an infectious disease.
2. An infectious disease that spreads quickly and kills many people is called a plague.
3. Another name for a germ is a pathogen.
4. A non - living pathogen is a virus.
5. The disease that disabled or killed many children in the 1900s was polio.
6. The white blood cells that destroy pathogens are phagocytes.
7. The white blood cells that make antibodies are lymphocytes.
8. The body's most important defense against infectious diseases is the immune system.
9. Doctors give vaccines to help the body make antibodies before a pathogen enters the body.
10. The first vaccine was made for smallpox.
11. Edward Jenner used cowpox to make the smallpox vaccine.
12. The practice of keeping things clean to prevent infectious diseases is called sanitation.

Answer:

1. How They Are Alike: Both are white - blood cells in immune response.

How They Are Different: Phagocytes engulf, lymphocytes produce antibodies/attack infected cells.

1. How They Are Alike: Related to immune response to disease.

How They Are Different: Pathogen causes disease, antibody fights it.

1. How They Are Alike: Prevent infectious diseases.

How They Are Different: Vaccines stimulate immunity, sanitation reduces pathogen presence.

1. infectious disease
2. plague
3. pathogen
4. virus
5. polio
6. phagocyte
7. lymphocytes
8. immune system
9. vaccine
10. smallpox
11. cowpox
12. sanitation