Expansion of Functions

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Expansion of Functions

 

a principle of the functional evolution of organs according to which an organ acquires functions that it did not possess previously. For example, in bivalve mollusks the gill cavity also became a brood pouch, and the ventral fins of Elasmobranchii also became organs of copulation. The principle of expansion of functions explains the increase in organs’ multiplicity of function as the structure of organisms became differentiated in the course of evolution.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
In addition, the new multi-RFID reader/writer is configured to allow easy expansion of functions through the additional installation of new network software, thereby making it unnecessary to replace the reader/writer when new protocol RFID tags are introduced on the market.
JR East said it expects the expansion of functions to help increase the number of users.
Many community college advocates argue that the constant expansion of functions is a natural outcome of the community-based mission of the colleges.