"If two species of paramecium are reared in the same environment, what behavioral aspect would provide the greatest chance of survival for both species"

i know can you plzz me with this question im sorry i didt answer your question i just need hel.

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