(CALCIUM)
regulation in the human body. The role of vitamin D is shown in orange. Vitamin D is carried in the bloodstream to the liver, where it is converted into the prohormone calcifediol. Circulating calcifediol may then be converted into calcitriol, the biologically active form of vitamin D, in the kidneys.
Am certain that the somatosensory cortex in the human brain processes information about bodily sensations. The somatosensory cortex receives all sensory input from the body. Cells that are part of the brain or nerves that extend into the body called neurons.. Neurons that sense feelings in our skin, pain, visual, or auditory stimuli, all send their information to the somatosensory cortex for processing.
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The circulatory system transports nutrients absorbed by the digestive system around the body.
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"Reproduction refers to the production of offspring by organized bodies. The offspring is produced as a new individual organism from the parent(s). It is one of the fundamental attributes of a living thing."
-Biologyonline.com
Answer: i tried this is hard
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