Before revision:  The timescale for and statistics of environmental change, the precision with which URLanism can detect its environment, and the costs and benefits of particular protein expression levels all will affect the suitability of different strategies (such as constitutive expression or graded response) for regulating protein levels in response to environmental inputs.
After revision:  The timescale for and statistics of environmental change, the precision with which URLanism can detect its environment, and the costs and benefits of particular protein expression levels all will affect the suitability of different strategies-such as constitutive expression or graded response) for regulating protein levels in response to environmental inputs.