What is a passageway for food and air?

• trachea

• esophagus

• pharynx

• bronchi

What extracts water from digested food?

• stomach

• large intestine

• small intestine

• esophagus

What uses muscle contractions to churn food into chyme?

• liver

• small intestine

• large intestine

• stomach

What muscular tube carries food from the pharynx to the stomach?

• small intestine

• trachea

• esophagus

• large intestine

What organ removes waste from blood?

• bladder

• kidney

• small intestine

• lungs

How does the excretory system maintain homeostasis?

• breaks down nutrients

• removes waste

• absorbs nutrients

• prevents infection

The skin, lungs and kidneys all remove wastes from the body

• true

• false

Where does digestion begin?

• mouth

• esophagus

• stomach

• small intestine

What organ stores bile?

• liver

• gallbladder

• pancreas

• small intestine

What is the name for muscular contractions that push food through the digestive tract?

• peristalsis

• respiration

• digestion

• excretion