The kidney...?

The protease enzyme...?

The plasma (in blood) contains...?

The four chambers of the heart are the...?

The epiglottis...?

(what it is, function)

Intercostal muscles are...?

What is respiration?

What is the chemical equation for respiration?

What is the main vein entering the heart?

How many valves are there in the heart?

What substances are excreted through the skin?

What is the main chemical in urea/urine?

The pancreas produces...?

Which enzyme is produced in salivary glands?

What is peristalsis?