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When a gasoline engine burns gasoline, what type of chemical reaction is occurring?

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?

Located at the epidermal-dermal junction of the skin. select all true statements about the transformation of melanocytes into abnormal cell