echo vs resemble

echo is a noun but resemble is not a noun.

Word	Noun	Adjective	Verb	Adverb
echo	Yes	No	Yes	No
resemble	No	No	Yes	No

As verbs, resemble is a hypernym of echo; that is, resemble is a word with a broader meaning than echo:

echo (noun)	resemble (noun)
an imitation or repetition
the repetition of a sound resulting from reflection of the sound waves
a reflected television or radio or radar beam
a close parallel of a feeling, idea, style, etc.
a reply that repeats what has just been said

echo (verb)	resemble (verb)
to say again or imitate	appear like; be similar or bear a likeness to
ring or echo with sound
bring to mind