These passively managed funds are designed to provide an efficient mechanism for investors to buy local currency funds.

Some marine fish, like sharks, have adopted a different, efficient mechanism to conserve water, i.e., osmoregulation.

Hence, plants need an efficient mechanism of regulating the amount of chlorophyll precursor.

Messages can also be useful as a robust and efficient mechanism to implement resynchronization points in some applications.

Clumped distribution in species acts as a mechanism against predation as well as an efficient mechanism to trap or corner prey.