A _____ meal stays in the stomach the longest.

The gastrointestinal tract is part of the endocrine system because it releases ___ that regulate digestion and the rate at which food moves through the digestive system.

The pancreas is part of the endocrine system and also part of the digestive system.

Lead absorption is decreased by the presence of ________ in the body.

Dietary supplements can be a source of nutrients and calories.

Food allergies have their origins in the GI tract.

The ____ is responsible for swallowing and is also a part of the respiratory tract.

All of the following are characteristics of insulin except that:

Normal blood glucose level is expected to be less than ___ milligrams/100 milliliters of blood after an 8-hour fast.

The _____ system eliminates the majority of nitrogen-containing metabolic waste products.