What are the major roles of the villi and microvilli in the small intestine?
a. The microvilli absorb nutrients into the lymphatic system.
b. The microvilli trap nutrients so the villi cells can absorb them.
c. The villi block toxins from absorption into the blood.
d. The villi complete the breakdown of foods into nutrients.
e. The microvilli facilitate digestion of a greater percentage of deficient nutrients.
Question 2
Phosphorus and calcium form the chief crystal of bone called _____.
1.marrow
2.bone matrix
3.hydroxyapatite
4.boneapatite
5.none of these choices
Actions of regulatory transcription factors and small effector molecules
Major structures of the human brain.
Different parts of the body mature at different rates. “General” refers to the body as a whole: the
The major internal features of a neuron.
Major Risk Factors for Hypertension
Major Elements of the Genitourinary System