These straps are used to bind the batim to one's arm/hand (Tefillin shel Yad) and to one's head (Tefillin shel Rosh) in obedience to Deuteronomy 6:8 (And thou shalt bind them for a sign upon thine hand, and they shall be as frontlets between thine eyes).
Given that a single mangrove area can produce as much as four tons of detritus per year, the mud crab's work as a decomposer is a primary part of the detritus-based food ecology that supports fisheries populations.
Decomposer. Decomposition is a process that small organisms act on dead plants and animals biomass to convert those into molecular levels. Decomposers are the organisms that contribute to the decomposition process. Fungi are the primary decomposers in a forest, while bacteria are also good examples.