Base on the given symptom and observance from the sixteen year
old, she has a deficiency of the vitamin b12 in which she could acquire from
meat products. She has a deficiency of this vitamin because she has not been
taking up meat products as she became a vegetarian.
Answer:
d . different population of the same species physically separated from each other forming new species.
The circular folds slow the passage of the partly digested food along the intestines, and afford an increased surface for absorption. They are covered with small finger-like projections called villi (singular, villus). Each villus, in turn, is covered with microvilli.
While rugae is only evident when an organ or tissue deflares or relaxes. The rugae unfolds for increase in volume . Plicae remains folded in the intestinal walls.
Rugae is not associated with the large absorptive surfaces in the small intestine.
Answer:
The cytoplasm, cell membrane and nucleus are the three important parts of a cell.
It sprouts hope this helps!!!!!