Final answer:
The statements refer to cilia and flagella, which are cell organelles organized in a "9+2" microtubule structure and use dynein motors for locomotion.
Step-by-step explanation:
The statements "The basal body is the organizing center", "It is arranged in a (9+2) array", "It uses dynein motors", and "It is involved in moving fluid over the surface of cells" all refer to structures known as cilia and flagella. These organelles are essential for cell locomotion and operate in a characteristic "9 + 2" microtubule array configuration, where a ring of nine microtubule doublets surrounds a pair of single microtubules in the center. Their movement is powered by dynein motors that use ATP to generate force for the sliding of microtubules, leading to the bending and movement of cilia and flagella. Basal bodies act as the microtubule-organizing centers from which these structures emerge.