Digestion of foods includes the mechanical actions of:
a. chewing to allow some nutrients to be absorbed into the body through the tongue.
b. peristalsis waves to move the foods down through the digestive tract.
c. the stomach to gently release foods into the small intestine.
d. the small intestine to absorb water and create the paste that forms feces.
e. the large intestine, which releases gas that facilitates fecal transport.
Question 2
What is the role of white blood cells in protecting the body from invading organisms?
a. Phagocytes release antibodies against the invaders into the bloodstream.
b. T-cells release a chemical trail for identification of invaders.
c. B-cells engulf and digest the foreign particles.
d. Killer T-cells seek out and destroy all foreign particles with the same identity.
e. Skin cells are a type of white blood cell that provide a physical, protective barrier.
Hertzsprung-Russell diagram for a set of stars that includes the Sun
GM Foods
Nutrients in Foods and in the Body
Foods made with fat substitutes aren’t calorie free
The USDA Organic Seal Foods Label
Proteins are body-building nutrients