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Um, excuse me, Mr. Hol, but how does our skin protect us from pathogens?
Well, you asked the right person, since I am a science teacher. The skin protects us from pathogens by forming a barrier with pores too small for them to enter in. This helps the germs from going in out bodies.
Oh, thanks! I was wondering if you can answer another question: What does our white blood cells do and how do they kill germs?
Of course I can. White blood cells are vital for killing invading germs that can harm out body. They kill germs by first trapping them, and them blasting them with enzymes.
Thanks! Now, for the final question, what is an antibody and how does it work?
Thanks, Mr. Hol! Bye!
Well, an antibody is a blood protein that is produced in response to a specific antigen. It works by combining with other substances through a chemical change which the body can recognize as alien, or doesn't belong.
See you later!
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