Dred Scott Vs. Stanford case was heard in Supreme court of US which issued its final ruling saying that Africans whether free or slaves were not the citizens of US.
Explanation:
Dred Scott who is a plaintiff and a slave was bought by John Emerson in Missouri. Later Emerson came along with Dred Scott to Illinois where Scott married and as they were returning to Missouri, Emerson died. Now Dred Scott decided to sue for his freedom in the federal court. He claimed he was free as he lived in the free state.
Robert Taney who was the chief justice issued the land mark decision that African american though free or slave were not the citizen of US and hence Dred Scott had no right to sue in the federal court. Dred Scott lost his case and this ruling was condemned universally as one of the racism based verdicts which paved way for the amendments of the statutes pertaining to the rights of African Americans.
Pakistan could serve as an effective mediator but they did not wanted to take any sides in this situation, because this is the best option for them.
Osmoreceptors within the hypothalamus detect and increase in plasma osmolarity. This results in a decrease in ADH release from the posterior pituitary, and hence decrease in water permeability of the collecting duct.
<h3>What is osmoregulation?</h3>
Osmoregulation is that the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to take care of the homeostasis of the organism's water content; that is, it maintains the fluid balance and therefore the concentration of electrolytes to keep the body fluids from becoming too diluted or concentrated.
The tendency of water to move into one solution from another by osmosis is osmotic pressure. The upper the osmotic pressure of a solution, the more water tends to maneuver into it.
<h3>Osmoregulation through kidney :</h3>
Pressure must be exerted on the hypertonic side of a selectively permeable membrane to stop diffusion of water by osmosis from the side containing pure water. Although there could also be hourly and daily variations in osmotic balance, an animal is usually in an osmotic steady state over the long term.
Organisms in aquatic and terrestrial environments must maintain the proper concentration of solutes and amount of water in their body fluids; this involves excretion (getting rid of metabolic nitrogen wastes and other substances such as hormones that would be toxic.
To learn more about osmoregulation :
brainly.com/question/3454642
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I’d say B, emotion expression.
Writing about stress has nothing to do with training, meditating, or being hypnotized.
Hope this helps.
