Nail biting happens Because people have anxiety. The nail biting relieves stress, tension, and or boredom.
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~QueenSupreme aka Black-Rose♥
Answer:
Explanation:
Nitric Acid reacts with egg shell to form calcium nitrate, carbon dioxide and water. Egg shell + Nitric Acid --------> Calcium Nitrate + Carbon dioxide + Water
The microtainer/micro collection tube holds between 250 and 500 μl of blood.
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What is a Collection tube?</h3>
This is often used in the laboratory and comprises of a plastic reservoir and a lavender color-coded closure.
The microtainer/micro collection tube holds about 250 and 500 μl of blood which is used for diagnosis etc.
Read more about Collection tube here brainly.com/question/24032977
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