Answer:
Bartolomé de las Casas, worked tirelessly to prevent the enslavement of all native people and later regretted wholeheartedly his advocacy of African slavery. Indigenous and black activists and protestors for 500 years have taken up his arguments to push for changes to the systems that have made them second-class citizens.
Explanation:
Social activists work to promote, guide, or impede changes in government or business policies and influence the actions of individuals and groups. They build connections among groups and communities and disseminate information on specific issues to create awareness and influence social change.
<h3>What is
Social activists?</h3>
According to the Oxford Dictionary, a social activist is "a person who works to achieve political or social change, especially as a member of an organization with specific goals."
Racial equality, gender equality, immigration reform, human rights, LGBTQ+ rights, and religious freedom are all popular social movements among activists. Environmental activism and computer activism are two other types of activism (or hacktivism).
Activism has played a significant role in the abolition of slavery, the challenge of dictatorships, the protection of workers from exploitation, the protection of the environment, the promotion of gender equality, the opposition to racism, and many other important issues. Activism can also be used to target minorities or to promote war.
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The inner layer of the serosal pericardium is a thin, transparent layer of simple squamous epithelium called the "visceral pericardium."
<h3>What is serosal pericardium?</h3>
A fibrous pericardium (parietal covering), which would be mirrored around the roots of the main veins to cover the whole surface of the heart, is lined by a layer of serosa called the serous pericardium (visceral layer).
Some key features of serosal pericardium are-
- There might be a little hole between the parietal & visceral layers that a small quantity of fluid might fill.
- The epicardium is the region of a visceral layer which surrounds the heart but not the major vessels.
- There are two sinuses formed by the serous pericardium as it reflects off different cardiac structures: the transverse sinus as well as the oblique sinus.
- A cul-de-sac formed by two left pulmonary circulation on one side and also the two pulmonary artery veins on the other, the oblique sinus extends superiorly from of the inferior vena cava.
- In between four pulmonary veins, its posterior wall of a left atrium forms its anterior wall. The left atrium has room to expand thanks to the oblique sinus.
- The visceral serosal pericardium is reflected from the posterior portions of the pulmonary and aortic veins onto the superior surface of the atrium to produce the transverse sinus, which is open at both ends.
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Had achieve nearly 6 month . research any department cool and patience
