Where do nutrients first enter the blood?
A. Through cells in the nephrons of the kidneys
B. In the liver, where glucose is delivered to the blood
C. In the kidney, where wastes are sent to the bladder
D. Through cells in the villi of the small intestine

Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere