Quick Answer. According to Science NetLinks, cells convert energy for your body and continually divide to make more cells for growth and repair. The body has about 200 different types of cells, and specific cells have assorted jobs to do. The various shapes of body cells depends on each cell's job.
knock boots. verb - intransitive. to have sexual intercourse. They were knocking boots 'til sunrise. See more words with the same meaning: sex, sexual intercourse.
Knocking at Your Back Door. Knocking at Your Back Door is a song by the British hard rock band Deep Purple, the first track of the album Perfect Strangers, which was released in September 1984. Song was written by Ritchie Blackmore, Ian Gillan and Roger Glover. The track was widely broadcast by the media of that time.