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The greater the mass of a main sequence star,the greater its
Hemoglobin
A protein in red blood cells responsible for carrying oxygen from the lungs to the rest of the body.
Live Birth
The process of giving birth to young that have developed inside the body, as opposed to laying eggs.
Neural Crest Cells
A group of embryonic cells found only in vertebrates; develop along the neural tube and migrate to various parts of the embryo where they give rise to (or influence the development of) nerves, head muscles, cranium, jaws, and other structures.
Embryonic Cells
Cells that originate from the embryo and have the potential to develop into any type of body cell, possessing high degrees of plasticity and the ability to proliferate.
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