ANYONE PLEASE HELP ME I WILL MARK IF CORRECT Which statement best describes a difference between electromagnetic waves
and mechanical waves?
A. Electromagnetic waves vibrate in two directions that are
perpendicular to each other.
B. Electromagnetic waves require empty space to transfer energy
from one place to another.
C. Mechanical waves transfer matter, not energy, from one place to
another.
D. Mechanical waves can transfer matter through empty space.

D

Explanation:

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate.

This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

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