1 In the cytoplasm, the mitotic spindle, consisting of microtubules and other proteins, forms between the two pairs of centrioles as they migrate to opposite poles of the cell. 2  The nuclear envelope disappears at the end of prophase. 3  This signals the beginning of the substage called prometaphase.
  Percussion Family. The Timpani is struck by mallets ... any instrument that requires a percussive touch is a member of this family ...surprisingly enough, and a little â¦ known fact, the Piano is also a member of the Percussion Family ... a key must be struck to produce a tone!!5 people found this useful.he Timpani is struck by mallets ... any instrument that requires a percussive touch is a member of this family ...
Which instrument family does the piano belong to? I need to know for school....my music teacher says the String family, but my other music teacher says Percussion....which is correct? I've also been told somewhere that it belongs to the 'keyboard family'...which I didn't even know was a family!!! Please help as soon as possible!!! Love Laura XxX