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
The answer would be water.
<span>a foot or more in length, and each cell contains hundreds of nuclei</span>
<span>Red blood cells do not contain a nucleus because their purpose is to carry oxygen around the body. Due to the fact these cells do not have a nucleus, their capacity to carry this oxygen is increased greatly.</span>
Hypotonic describes the concentration of salt. Hypotonic is typically when a concentration has a higher solute concentration or salt and less of a water concentration.
Hypertonic is the opposite with a higher concentration of water and a lesser concentration of solute or salt.
Hope this helps!
