Answer:
Look at the explanation!
Explanation:
The Mercator map projection is a cylindrical map projection that was presented by Gerardus Mercator in 1569. Gerardus Mercator was a Flemish geographer and cartographer. It became the standard map projection for navigation because of it's cool one of a kind property of "representing any course of constant bearing as a straight segment."
The answer is C, the sugar, as the D stands for deoxyribose
Answer:
Heres a link to a labeled diagram of the heart. Sorry I was trying to put a picture in but It wouldn't save as a JPEG file
Link:
https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwjpw8LI4vzlAhVMPn0KHWHnCTkQjRx6BAgBEAQ&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FFile%3ADiagram_of_the_human_heart_(cropped).svg&psig=AOvVaw2LsD24TXBtoTcH1kjWCRJC&ust=1574476068782790