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 ...
1. to which instrument family does the saxophone belong? A. strings B. woodwinds C. brass D. percussion 2. what trait do all brass instruments share? A. they all have valves B. they are made of brass C. players buzz their lips in the mouthpiece D. players often use them to play trills 3.. to which instrument family does the saxophone belong? A. strings B. woodwinds C. brass D. percussion 2. what trait do all brass instruments share? A. they all have valves B. they are made of brass C. players buzz their lips in the mouthpiece D. players often use them to play trills 3.