What are the smallest living units that make up our bodies?
Cells
What do viruses need to reproduce?
Living cells, also called host cells.
Which organ pumps blood around the body?
The heart.
Complete: The trachea carries _____ toward the lungs.
Air
Put the words in the correct order: tiny/ white / tiny / three blood cells.
Three tiny white blood cells.
What sticky material in the nose traps dust and germs?
Mucus
True or false: All bacteria are harmful. Correct the sentence if it is false.
False. Some bacteria are helpful.
Complete: Arteries carry blood _____ the heart.
Away from.
In the lungs, what gas does blood receive?
Oxygen.
Join these ideas with "because": "Students should wash their hands. Soap removes germs."
Join these ideas with "because": "Students should wash their hands. Soap removes germs."
What is the name of the body's defense system against germs?
The immune system
Name TWO illnesses caused by viruses from our review.
Influenza and the common cold.
Complete: Veins carry blood _____ the heart.
Back to.
Complete the gas name: Blood carries carbon _____ to the lungs to be released.
Dioxide. The full name is carbon dioxide. (Co2)
Explain in ONE complete sentence how covering a cough helps other people.
Covering a cough helps stop droplets from spreading to other people. Accept equivalent correct explanations.
These single-celled organisms are living. Some help us and some cause illness. What are they?
Bacteria
Read: "Mucus traps germs. White blood cells attack invaders. Washing hands removes germs." What is the main idea?
Our bodies and healthy habits help protect us against germs. or: The body has several defenses against germs.
Which blood vessels are the smallest?
Capillaries.
Which muscle below the lungs helps you breathe?
The diaphragm.
Say TWO sentences: Give your opinion about handwashing at school. Then give a reason using "because."
I think students should wash their hands at school. This is important because soap removes germs and helps protect others.
What tiny agent needs a living cell to reproduce?
A virus
Give ONE detail supporting this main idea: "Our bodies have several defenses against germs.
Mucus traps germs; white blood cells attack invaders; handwashing removes germs; covering coughs limits the spread of droplets.
Your teammate mixed up the facts! Correct BOTH: "Arteries carry blood back to the heart. Veins carry blood away from the heart."
Arteries carry blood away from the heart. Veins carry blood back to the heart.
Put the breathing route in order: lungs / trachea / nose or mouth.
Nose or mouth → trachea → lungs.
In THREE sentences, explain how the heart, blood vessels, and lungs work together. Include oxygen and carbon dioxide.
The heart pumps blood through the blood vessels. Blood receives oxygen in the lungs and carries it to the body. Blood carries carbon dioxide back to the lungs, where it is breathed out. Accept equivalent accurate explanations in three sentences.