What is the main purpose of scientific models?
a.
the main purpose of models is to have a physical object to which to refer.
b.
the main purpose of models is to represent observations.
c.
the main purpose of models is to study systems that no longer exist.
d.
the main purpose of models is to gain a better understanding of the world.

The us council on environmental quality, the world wildlife fund of the united states, the ecological society of america, the smithsonian institution, and the international union for the conservation of nature have proposed four principles of wildlife conservation. which of the following does not apply to wildlife conservation? a) continuous monitoring, analysis, and assessment b) ecosystem maintenance that includes wildlife c) a plan encompassing entire communities of organisms and all renewable resources d) a continued interest in harvesting populations for sport