Answer:
I beleive your answer is C Homeostasis
Explanation:
Lower esophageal sphincter! <span />
I think it is light so B) light
Absorbed into the blood by the mature enterocytes on the upper third of the intestinal villi
The work done is 137 joules.
Lifting opposes the acceleration of gravity, which is 9.8 m/sec/sec.
20 x 0.7 x 9.8 = 137 J (kg-m2/sec2)