<span>Endocrine messages tend to outlast the effects of neural messages.</span>
Answer: High living standards enables citizens to carry out investments in their nation which directly leads to the future growth of a particular nation.
Explanation: High standard generally refers to wealth, comfort, material goods and necessities of certain classes, it could as mean the economic ability of an individual to buy whatever he wants.
In countries with high standard of living individuals have vast economic strength, so they can easily start up any business they desire. These businesses either large or small are building blocks for effective growth of economies of countries.
Answer:
c. focus on the effects of only one change at a time.
Explanation:
An economic model is a theoretical<em> (mathematical or not) </em>construct used to explain or make predictions about economic behavior, its goal is to <em>simplify complex processes</em> to understand economic issues. <em>It uses variables to study an specific change at a time.</em>
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