1 Ghrelin is a fast-acting hormone that plays a vital role in meal initiation and contributes to weight gain.  Leptin mediates long-term regulation of energy balance and suppresses food intake, thereby inducing weight loss.
For the military, as for the civilian world, it is not overstating the point to say that the advent of radio communications has changed almost everything. The meerkat or suricate is a small mammal and a member of the mongoose family.
The definition of surmount is to overcome or succeed in spite of difficulty, or to be on top. 1  An example of to surmount is to complete a difficult project. 2  An example of to surmount is to climb a very tall mountain. 3  An example of to surmount is to put an antennae at the top of a house.