Water-soluble nutrients stored in blood are routed directly from the small intestine through the portal vein to the liver before any other organ. The portal vein or hepatic portal vein is a blood vessel which carries blood from the GI tract, to the liver. The blood contains nutrients and toxins extracted from digested contents. The portal vein is not a true vein, since it conducts blood to capillary beds in the liver and not directly to the heart. It is the main component of the hepatic portal system.
Ozone depletion would cause more UV rays to pass through so your answer would be B)
Pollution causes B)
the structure is the difference between the two
Answer:
The Skeleton
Explanation:
because the softer tissues and skin usually do not last long enough to become fossilized
