I think A but I'm not totally sure!! Good luck.
Answer: In 1450 the printing press is developed. About 1503 the European kingdoms started to take people from Africa and enslaved them. Nov 11, 1620, the Mayflower Pilgrims made their first landing to America, in Province town Harbor, Massachusetts.1519 Magellan was the first person to sail around the world and to prove that the Earth is round. 1558 Elizabeth I rules England during the period of William Shakespeare. 1500 In Germany, the first ever watch was created by Peter Heinlein. 1534 England breaks away from the authority of the Catholic Church and becomes a Protestant country under King Henry VIII.597 The first ever flushing toilet was invented by John Harrington in England.
Explanation: you are welcome :)
Answer: I believe the answer is B - Nucled Acids.
Hope this helps.
Variations are beneficial for the survival of the species. Populations of organisms fill well-defined places, or niches, in the ecosystem, using their ability to reproduce.However, if some variations were to be present in a few individuals in these populations, there would be some chance for them to survive.