9. Cilia and flagella bend because of ________.
(A) conformational changes in ATP that thrust microtubules laterally
(B) a motor protein called radial spokes
(C) contraction by myosin
(D) a motor protein called dynein
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統計: A(0), B(0), C(1), D(2), E(0) #3056672
統計: A(0), B(0), C(1), D(2), E(0) #3056672