How do each growing stage of an insect vary? Young insects are born with wings and then lose it as they become an adult.
Insects are found different environment at different growing stage.
The young insect looks different from the adult insect.
Insects consume different things at different growing stage.

Mankiw attributes – chapter 1 and his 10 principles – differences in living standards within a countryover time and across countries at a moment in time to: a. the presence or absence of inflation and unemployment.b. the allocation of resources between private markets and the public sector.c. those that have dealt successfully with the efficiency v. equality tradeoff and those that haven’t.d. differences in productivity.e. ones that think at the margin and respond to incentives and those that don’t.