(a) Imperial Preference (later Commonwealth Preference) was a proposed system of reciprocallylevelled tariffs or free trade agreements between different Dominions and Colonies within the British Commonwealth of Nations. The purpose...
(a) Fat present below the skin surface in our body, act as a insulator against loss of heat from the body. The deposited fat works as barrier, which prevents loss...
(d) Most insects respire through tracheal system that lies on a network of small tubes that channel O2 directly to the different part of the body. The tracheal system is...