Human subjects in clinical trials, hope this helps :)
(an 18 year old died in a gene experiment, pennsylvania)
Hunting-and-gathering These are small, simple societies in which people hunt and gather food. Because all people in these societies have few possessions, the societies are fairly egalitarian, and the degree of inequality is very low. Some animals and crops. Like corn
The culture of North Africa and South Africa became united as a result of the prevalence of trade between them.
<h3>What is Trade?</h3>
This is defined as the buying and selling of goods and services between two or more parties.
The trade between North Africa and South Africa made it possible in learning their culture through various products and factors.
Read more about Trade here brainly.com/question/17727564
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<span>When the marginal benefit of applying additional fertilizer will no longer be greater than the marginal cost of the fertilizer, the marginal costs would equal or exceed the marginal benefits from enhanced growth. It will result into shortage of additional fertilizer thus it will only pay for the exact number of fertilizers needed. There are no longer extra fertilizer that can be used for emergencies.</span><span />
