A penumbral shadow is cast when the light source is smaller than the object.
True
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What is the name for a substance formed in a chemical reaction
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Pls me i need this ! each cell has genes activated depending on it's job and what kind of cell it is. it is the presence of that causes the repressor protein to fall off and unblock the gene on the lac operon. if a gene is turned on then it is being an additional circular chromosome found in some bacteria that is used in genetic engineering.
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Identify the area on the image where the force of attraction is the strongest.
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