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 ...
Only for a very small number of people. Ragweed, chamomile, and echinacea are all members of the same botanical family, Asteraceae. It's this close relationship that is thought to be responsible for the rare reports of patients with ragweed allergies having allergic reactions to chamomile or echinacea, explains Mary Beth Fasano, clinical professor of internal medicine at the University of Iowa.