1. Which statement best describes how the field of plant breeding has evolved? O A. Plant breeding wasn't possible before the advent of molecular biology
O B. Humans have always performed plant breeding but haven't always understood the genetic mechanisms underlying plant breeding
O C. Gregor Mendel was the first to breed plants
O D. Plant breeding has been banned as a backlash reaction to GMOs

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.