Mark the following statements about the cytoskeleton as true or false. If a statement is false, correct it to make a true statement.a. _____ Actin filaments combine with myosin motor proteins to provide the cell with mechanical strength.b. _____ The cilia found on sperm cells propel the cells through a liquid medium.c. _____ Microtubules are hollow tubes that align organelles and shuttle them to their proper places in the cell.d. _____ Intermediate filaments are ropelike structures composed of tubulin proteins.e. _____ Centrioles are part of the centrosome from which microtubules originate.f. _____ Endocytosis, exocytosis, muscle cell contraction, and cellular “crawling” are all mediated by intermediate filaments

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