8. Root hairs are most important to a plant because they
(A) anchor a plant in the soil.
(B) increase the surface area for absorption.
(C) contain xylem tissue.
(D) store starches.
(E) provide a habitat for nitrogen-fixing bacteria.
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統計: A(4), B(158), C(1), D(1), E(12) #2189320
統計: A(4), B(158), C(1), D(1), E(12) #2189320