FAT soluble nutrients enter the lymphatic system after absorption, while WATER soluble nutrients enter the portal circulation. Once absorption takes place in the body, the large fat-soluble nutrients are initially absorbed into the lymphatic system before being transported into the bloodstream, whereas water-soluble nutrients travel through the hepatic portal veins to reach the liver.
Some organisms have adapted in such a way that they stay inactive during the active hours of their predators. The adaptive theory of sleep posits that prey tend to rest at night when their predators are most active, using this time to rejuvenate and gather energy for various tasks. By remaining inactive and sheltered, prey decrease their chances of being hunted.
Thus, the answer is the adaptive theory of sleep.
