Likewise, if the population consists of equal numbers of males and females, and if the females give birth to 3 children each (and the males 0), then the average birth rate of the population will be 1.5. With these basics we can now consider two simple models of population growth:
For most purposes scrolls have long been superseded by the codex book format, but they are still produced for some ceremonial or religious purposes, notably for the Jewish Torah scroll for use in synagogues.
Related: Our Scroll Saw Buying Guideâ. Many times a scroll saw is what is used to create those cool jigsaw puzzles, and small sculptures you see in craft stores. But, the use of scroll saws isn't limited to intricate craft items. âScroll saws are handy enough to allow you to make any precise cut with extreme accuracy.