<span>A polygenic trait is contributed by two or more genes one gene two alleles multiple alleles. True!</span>
Lithosphere is the correct answer
cause hydrosphere is water
and stratosphere and atmosphere are part of the air
There are many reasons to why slaves were essential in the colonial economy:
Slaves were generally used more in the south, because large plantations were found there, which meant that the need for large amounts of workers.
Slaves provided cheap labors, and as they were not "citizens" of the US, they were not allowed their rights.
Slaves were also relatively easy to buy and replace, however, their survival rates were not that good after they traveled long distance.
etc.
hope this helps
Alcohol withdrawals are usually accompanied by seizures, tremors lowgrade fever and sweating. A severe complication of alcohol withdrawal is called<span> Delirium Tremens (DT)</span>. Delirium Tremens is described by delusions, mental disorder, and disorientation. Patients exhibiting DT while on withdrawal has 5%-25% mortality rate.
