How does sweat cool the body?
A. It adds heat to the body when it evaporates
B. It removes heat from the body when it turns liquid
C. It removes heat from the body when it evaporates
It removes heat from the body when it evaporates
100
Which organ does food transport from your mouth to your stomach?
A. Bladder
B. Esophagus
C. Small intestine
Esophagus
100
What is the largest organ in the body?
Skin
100
An________ is a hard outer layer.
Exoskeleton
200
The sense of hearing depends on which specialized cell?
A. Hair Cells
B. Taste Buds
C. Rods and Cones
D. Chemorceptors
Hair Cells
200
What is the function of the heart?
To pump blood
200
Which organ functions in the excretory system an din another body system?
A. Bladder
B. Lungs
C. Kidneys
Lungs
200
The __________ is the processing center of the body
Brain
200
_________ are spongy organs that expand to fill with air.
Lungs
300
Justin accidentally bumped his leg on a desk. What is the FIRST thing that happened with his nervous system?
A. He yelled OW
B. The nerves in his leg sensed pain
C. The brain sent a message to the integumentary system
B. The nerve in his leg sensed pain
300
Humans take in oxygen and release_______
Carbon Dioxide
300
What is the function of the urinary system?
A. aids in reproduction
B. Stores important nutrients and vitamins
C. regulates fluid balance and eliminates waste.
Regulates fluid balance and eliminates waste.
300
A rope-like bundle of nerves , called the_______ runs along your backbone.
Spinal Cord
300
What are the functions of the stomach?
To break down foods into a liquid and mixes the food with digestive juices.
400
The waxy leaves on some trees help keep water inside the leaves. Which body part performs a similar function?
Skin
400
What are the three types of muscles found in the body?
A. heart, brain, skeletal muscle
B. skeletal muscle, blood vessel walls, pancreas
C. heart, skeletal muscle, blood vessel walls
heart, skeletal muscle, blood vessel walls
400
What is an organism?
a living thing
400
________ are organs that contract to produce movement in the body.
muscles
400
The _____________ stores urine and then releases it from the body.
bladder
500
When a person gets hot, his or her skin produces sweat. When a dog gets hot, it uses its moist tongue to pant. Why does a person's body cool more quickly than a dog's body?
A. A person has a higher body temperature than a dog
B. A person's body is usually much heavier than a dog's body
C. A person's skin has much more surface area than a dog's tongue does
C. A person's skin has much more surface area than a dog's tongue does
500
Which body part fights infections?
A. Plasma
B. White blood cells
C. red blood cells
White blood cells
500
A __________________ is a group of organs that work together to do one type of job
organ system
500
What is the major function of the muscular system?