Answer: B). Macromolecules
Explanation: A macromolecule is a molecule of a very large size that is composed of smaller subunits through the process of polymerization. The smaller subunits are called the monomers.
Examples of macromolecules are nucleic acids, carbohydrates, lipids and proteins.
Positive slope facing north
I believe it to be the first one sorry if i am wrong
Answer: A, through extensive testing and the accumulation of several lines of evidence
Explanation: