Digestive/Excretory Roundup/Check

Which of the following aid in breaking down food?

• Stomach

• Heart

• Lungs

• Small Intesting

What is the function of this internal structure?

• To carry the food from the mouth to the stomach.

• To release the nutrients from the food.

• Removing waste.

• Allow nutrients to enter into the blood stream.

What is the purpose of the digestive system?

• Bringing in oxygen

• breaking down food.

• removing waste.

• moving materials through the body.

In mammals, the ​ (a)   system breaks down food. Organs that are apart of this system are the ​ (b)   and the small intestine. The ​ (c)   system is the system that removes waste from the body. Organs that are a part of this system are the kidneys and the ​ (d)   .

• digestive
• stomach
• excretory
• skin

Match the following organ with their system.

• Circulatory

• Heart

• Excretory

• Stomach

• Digestive

• Kidney

• Respiratory

• Lungs

Reorder the following digestive system steps.

• The food enters through the mouth.

• Down the esophagus.

• Into the stomach where the food is broken down.

• Then, into the small intestine where it absorbs nutrients.

• Then, into the large intestine where it absorbs water.

True or False:

All animals have the EXACT same internal structures.

• TRUE

• FALSE

True or False:

The lungs are in the respiratory system and the excretory system.

• TRUE

• FALSE

Match the following

• two-chambered hearts.

• Ammphibians

• four-chambered hearts.

• Fish

• three-chambered hearts.

• Mammals

Click on the small intestine.