Where does gas exchange occur?
Frogs have an organ that has two atria and one ventricle. This organ is the
The following are parts of the frogs circulatory system except for the
Frogs and humans have a spleen. What is the function of the spleen?
The liver is an accessory organ. What body system is the liver apart of?
Humans and frogs both have a small green sac attached to the liver that stores bile. What is the name of this structure?
The heart is an organ in what body system?
The lungs are part of what body system?
Frogs and humans have a bladder to hold urine. What body system in the bladder apart of?
What is the function of the stomach.
What is the function of the liver
What is the function of the heart
What is the function of the small intestine
What is the function of the lungs
What is the function of the large intestine


Identify structure #16 on the heart.
Identify structure #17 on the heart.
Identify structure #18 on the heart.
Identify structure #19 on the heart.
Identify structure #20 on the heart.
Identify structure #21 on the heart.
Identify structure #22 on the heart.
Identify structure 23.
Identify structure 24.
Identify structure 25.