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What type of cell is responsible for immunity against intracellular pathogens?

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Biology, 22.06.2019 06:00, Ryan02717

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Biology, 22.06.2019 10:00, AM28

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?

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Biology, 22.06.2019 12:10, sgalvis455

What would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time?