Shells are the exoskeletons of clams, snails and oysters. Hope that helps
Explanation:
under what circumstance does a negative cell presents An antigen to another negative cell
Answer:
Nothing
Explanation:
No options found and you asked us to pick from the following
The correct answer is:
D
.Villi in the small intestine have thin-walled capillaries to make the absorption of nutrients more efficient.
Explanation:
The small intestines are well adjusted for absorbing nutrients during digestion by being very long, having villi and microvilli that enlarge surface area, using muscular contractions to move and mix food, and raising and housing digestive enzymes and bile that aid the breakdown of food. The inner surface of the small intestine is not flat but thrown into circular folds, which not only enhance surface area but aid in preparing the ingesta by acting as baffles. Villi: the mucosa makes multitudes of ridges which project into the lumen and are satisfied with epithelial cells.
Answer:
i believe the answer would be genetics since you are altering the DNA of the plants
