At its simplest, biotechnology is technology based on biology - biotechnology harnesses cellular and biomolecular processes to develop technologies and products that help improve our lives and the health of our planet.
In macroeconomics, the focus is on the demand and supply of all goods and services produced by an economy. Accordingly, the demand for all individual goods and services is also combined and referred to as aggregate demand.
Definition of macroeconomics. : a study of economics in terms of whole systems especially with reference to general levels of output and income and to the interrelations among sectors of the economy â compare microeconomics.