What are the two main waste products of metabolism that must be excreted?

Which process produces carbon dioxide as a waste product?

Which organ excretes carbon dioxide from the body?

Where in the body is urea produced?

Which organ excretes urea from the body?

Carbon dioxide is a waste product of respiration and is excreted via the     .

Urea is produced in the liver during the breakdown of excess         .

Why must the waste products of metabolism be removed from the body?

True or False? Urea is excreted via the lungs.

True or False? Carbon dioxide is a waste product of respiration.