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Which of the following organs is the site of dietary Vitamin D absorption?
Small intestine
Expert answered|latefisher|Points 3078|
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Asked 10/8/2012 9:24:37 PM
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Of the 20 amino acids relevant to the human body, how many are considered essential
Weegy: Of the 22 standard amino acids, 9 are called essential amino acids because the human body cannot synthesize them from other compounds at the level needed for normal growth, so they must be obtained from food. [ In addition, cysteine, taurine, tyrosine, and arginine are semiessential amino-acids in children, because the metabolic pathways that synthesize these amino acids are not fully developed. ] (More)
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Expert Answered
Asked 10/1/2012 6:33:51 PM
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The part of the protein molecule that carries nitrogen is the
Weegy: The part of the protein molecule that carries nitrogen is the: amine group - - - (More)
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Asked 10/1/2012 6:50:10 PM
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What exactly is the skeleton system and how does it function?
Weegy: The skeletal system is made up of both fused and individual bones; these bones are further supported by ligaments, tendons, muscles and cartilage. [ The skeletal system is essentially a scaffold which supports the body's organs, anchors the muscles, and offers additional protection to internal organs like the brain and the heart. An adult's skeleton makes up about 30-40% of a person's body weight; around half of this total weight is water. The body's fused bones include the bones of the cranium and the pelvis: these bones are separated at birth, so that newborns have more than 300 bones; as a person ages they grow together and fuse into a single large mass, leaving adults with only about 206 bones. Most of the individual and fused bones are directly connected to one another, but not all of them: three bones in each middle ear (the ossicles) are only connected to each other (not to any other bones in skeletal system) and the hyoid bone, the point of attachment for the tongue, is not connected to any other bones in the body. Instead, it is completely supported by the muscles and ligaments of the neck. There are two parts to the skeletal system: the axial skeleton and the appendicular skeleton. The axial skeleton has 80 bones, and is made up of the bones of the head, the ribs, and the vertebral column. The appendicular skeleton has 126 bones and includes the bones of the upper and lower limbs and the pelvic and pectoral girdles. The appendicular skeleton's function is to make locomotion possible and to protect the body's major internal organs (aside from those protected by the axial skeleton). The skeleton has several functions apart from support and protection: the joints permit movement, the bone marrow produces red and white blood cells, bone cells release osteocalcin, a hormone which helps regulate blood sugar and fat deposition, and the skeletal cell matrix stores calcium (and is involved in metabolizing calcium), and bone marrow stores some iron (as ... (More)
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Asked 10/4/2012 12:06:53 PM
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What are dietary supplements?
Weegy: In the United States, dietary supplements are substances you eat or drink. They can be vitamins, minerals, herbs or other plants, amino acids (the individual building blocks of protein), or parts of these substances. [ They can be in pill, capsule, tablet, or liquid form. They supplement (add to) the diet and should not be considered a substitute for food. Dietary supplements are widely available in the United States in health food stores, grocery stores, pharmacies, on the Internet, and by mail. People commonly take them for health-related reasons. Common dietary supplements include vitamins and minerals (such as vitamin C or a multivitamin), botanicals (herbs and plant products, such as St. John's wort), and substances that come from a natural source (such as omega-3 fatty acids). Source: ] (More)
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Asked 10/7/2012 6:39:22 PM
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What is the difference of over the counter dietary supplements and perscription supplements
Weegy: Over the counter supplements are not at strong or effective as the ones that require a prescription. Think of it like a pain killer. Tylenol works, but Vicodin is far more effective, but it's stronger so it requires a prescription. (More)
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Updated 10/8/2012 1:02:40 PM
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One difference between prescription and over-the-counter medicines is access. Only qualified and licensed medical professionals can order prescription medicines for their patients, and only qualified pharmacists can fill those orders.
Added 10/8/2012 1:02:40 PM
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