Question 1

The main function of our immune system is to?

Accepted Answer

protect us from infection and disease

Question 2

The body's defense starts with what largest organ?

Accepted Answer

the skin

Question 3

The immune system identifies foreign threats that could potentially be dangerous like...?

Accepted Answer

viruses, bacteria, and parasites

Question 4

What are five main categories of pathogens that cause infections in humans?

Accepted Answer

viruses, bacteria, fungi, protozoa, and worms

Question 5

What is a parasite?

Accepted Answer

an organism that lives off of another organism and gets its food from that organism

Question 6

What is a protozoa?

Accepted Answer

single-celled eukaryotes, either free-living or parasitic, which feed on organic matter such as other microorganisms or organic tissues and debris

Question 7

What is fungi?

Accepted Answer

any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms

Question 8

What is a prion?

Accepted Answer

a disease like CJD that is very rare you can catch this disease by an infected tissue, it can cause personality changes, anxiety, depression, and memory loss

Question 9

What happens during the inflammatory response?

Accepted Answer

blood circulation increases around the pathogens, which brings in many white blood cells called phagocytes, the blood cells absorb the invaders and dissolve the pathogens with chemicals

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