On a cloudless night a milky band known as a milky way is visible from earth. explain how the structure of our galaxy and the position of our solar system within our galaxy relate to this observation

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Choose the correct words to complete the sentences related to genetic screening. is a procedure that is used during pregnancy to detect genetic defects. is extracted from the uterus and used to identify genetic disorders?

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from