Which detail from the article BEST supports the idea that technology is constantly changing to make research better? A If something went wrong, then the medicine would have to be changed.
B If the product has a chemical that has not been used before, they have to test it.
C In the last few years, there has been a new development. It is called “organ-on-a-chip.”
DIt is useful when you want to see what a new medicine or chemical does to it.

i would say d tho   ctfvygbuhinjmlk

    racial conflict and discrimination has existed ever since man learned to kill with rocks and bones. these conflicts arose from disputes between territory, power, wealth, religion, or simple difference. some of the most infamous racial disputes include slavery, the holocaust, and the civil rights movement.

    these listed disputes often resulted in casualties from all sides. riots, wars, imprisonment, and lynching are all commonly associated with racial conflict on severe levels.

      however, racism is an improving issue in recent decades. people are being more accepting and welcoming of diverse populations. though, the world isn't perfect and it will take much more time, if ever, until the world is rid of racism.