They are two big sponge-like sacks.
LUNGS
The circulatory system acts like a ___________ system.
TRANSPORT
Where is urine stored?
THE BLADDER
Sperm fertilizes an ____.
EGG
The locomotor system allows us to _____.
MOVE
_______ is made up of lots of little bags.
ALVEOLI
What are white blood cells for?
THEY FIGHT INFECTIONS
_____ filters our blood.
THE KIDNEYS
______ developes from the egg and has a head and body.
EMBRYO
Our _____ is like the computer of our body.
BRAIN
The windpipe can also be called the _________.
TRACHEA
This is a hollow muscle.
THE HEART
In the stomach ______ makes food into a thick liquid.
GASTRIC JUICES
At six weeks old an embryo is the size of ______.
A SMALL SEED
Ribs protect the _____.
LUNGS and HEART
_______ divides into two tubes called the bronchi.
WINDPIPE/TRACHEA
Blood has a watery liquid called _____.
PLASMA
What is the digestive system?
IT EXTRACTS NUTRIENTS TO GIVE OUR BODY ENERGY AND HELP US GROW.
Where are the male reproductive organs on the body?
OUTSIDE
Name two involuntary movements the body makes.
Name three for an extra 100 points.
BREATHING
HEART BEATING
DIGESTING FOOD