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
A plot of trophic diversity across the major groups of organisms shows highest trophic diversity amo
The major groupings of living primates.
Celiac disease affects the small intestine.
The electromagnetic spectrum. Ionizing radiation is only a small portion of the electromagnetic ...
The three major mechanisms for facilitated transport
Maternal age is the major risk factor for autosomal trisomies of all types. By age 42, about one in