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<u><em>Sporophyte is the answer to, "Today, a dominating generation of plants has appeared."</em></u>
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Today, a dominating generation of <u><em>Sporophyte </em></u>has appeared.
The main difference is that mitosis occurs in body cells and meiosis occurs in sex cells. Mitosis produces identical daughter cells and meiosis produces genetically different daughter cells.
I would go for D or A! :)
Cell A is more efficient at exchanging substances due to larger surface area to volume ratio.
Cell A is more efficient at exchanging substances with the surrounding environment than cell B because it has the larger surface-area-to-volume ratio. Larger surface area of the cell exchanges more substances with the surrounding environment while on the other hand, lower surface area of the cell exchanges less materials with the environment so we can conclude that cell A is more efficient at exchanging substances due to larger surface area to volume ratio.
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Bone marrow contains stem cells that give rise to all of yur blood cells.