Living Environment Regents Review

Antibodies... 

• destroy body cells
• destroy toxins
• make pathogens stick together
• destroy particular viruses and bacteria

A vaccine contains...

• cow pox

• a small amount of the pathogen that is weakened or dead

• a large amount of the pathogen

• small pox

Which best describes the relationship between antibodies and antigens?

• Antibodies are specific to one antigen
• Antigens are produced in response to antibodies
• One antibody can affect several different antigens
• Immunity develops when an antigen destroys an antibody.

Antibodies are specific (acts on) one

• Antigen
• white blood cell
•  red blood cells
•  virus

The resistance to specific pathogens, or disease-causing agents is called _________.

• spleen
• lymphatic system
• anitbodies
• immunity

HIV is an example of what kind of transmission?

• Bloodborne
• Waterborne
• Airborne

What is one way a pathogen can enter the body?

• Nose
• Mouth
• Broken Skin
• All of the Aove

Disease-causing microorganism, such as a bacterium or virus.

• pathogen 
• allergen
• prion 
• antigen 

What do white blood cells do?

• Seek out and kill all living tissue
• Seek out and kill pathogens
• Transport food around the body
• Repair cuts and injuries

Tags

NGSS.MS-LS1-3

Antibiotics are used to treat

• viruses
• bacteria
• both viruses and bacteria
• fungal infections, only

Tags

NGSS.MS-PS1-2