How does an RNA molecule get modified (what part is kept and what molecules are used, what gets added on)?

Which technically is nasa developing that will astronauts reach mars

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in

According to your text, should be in the native language of the parents or guardians whenever possible. a. an email b. consent forms c. oral approval d. storybooks loaned out