Sometimes scientists have different explanations for the same observations. For example, before scientists understood atoms, they had different explanations for matter. What did these differing explanations lead scientists to do?
A) Scientists made more observations about the makeup of matter.
B) Scientists made fewer observations about the makeup of matter.
C) Scientists voted on a common explanation on which they could agree.
D) Scientists stopped studying matter until microscopes were introduced.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

b. lithosphere, asthenosphere, mesosphere   is the answer most likely