immune and reproductive system

What do scientists call bacteria and viruses that can make people sick?  

• diseases
• vaccines
• antibodies
• pathogens

Diseases are passed from human to human by these four types of germs: 

• Viruses, influenza, HIV, and vaccines
• Viruses, bacteria, fungi, and parasites
• Viruses, cancers, mutagens, and DNA
• Viruses, blood, pollutants, and symptoms

What is the Immune system?

•  The body's defense system
• A system that gives support and structure 
• A system that helps you breathe
• None of the above

What do antibodies attach to on the pathogen?

• Anti inflammatory
• Antigens
• Antiseptic
• Antibodies

Pathogens are recognized by their...

• antigens
• antibodies
• killer t-cells
• B-cells

What body system protects animals against invaders such as bacteria and viruses?

• Immune System
• Integumentary System
• Mammary System
• Respiratory System

What is the first barrier against disease?

• White blood cells
• Red blood cells
• the skin
• leucocytes 

Which would most likely prevent a cold virus from spreading in a classroom?

• tissue at a teacher's desk
• students wash hands regularly with soap 
• students shake hands regularly with each other
• students wipe desks with dry paper towels

Getting these when you’re young helps your immune system fight off diseases:

• Stickers

• Bandages

• Shots (immunizations)

• Cough drops

When someone’s immune system overreacts to something harmless it’s called:

• Overreactus maximus

• An allergy

• A sneeze

• The measles