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.
A: Decomposers include certain types of bacteria, worms, slugs, snails and fungi. All of these organisms break down or eat dead or decomposing organisms to help carry out the process of decomposition. They are the last step in the food chain, which recycles nutrients and breaks down wastes and organic matter in the ecosystem.