The most rapid nerve impulses are conducted on fibers that are Group of answer choices thick and unmyelinated. thick and myelinated. thin and unmyelinated. of medium thickness with spots of myelin. thin and myelinated.

i believe the answer would be b. hope it : )

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

thats not a question