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Which one of the following is the best explanation for why plants may use active rather than passive transport?
White Blood Cells (WBCs)
Cells in the blood that are part of the body's immune system, helping to fight off infections and diseases.
Leukocytes
White blood cells that are part of the immune system, involved in protecting the body against both infectious disease and foreign invaders.
Leukocytes
White blood cells that play a key role in the immune system by defending the body against infectious disease and foreign materials.
Agranulocytes
White blood cells, such as lymphocytes and monocytes, that lack granules in their cytoplasm and play a role in the immune system.
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