Performing vibrato incorrectly can be detrimental to the performer
true or false?

False? since vibrato is a musical effect consisting of a regular, pulsating change of pitch. Meaning if the performer does it wrong it will not bring any harm to them physically. But if your talking about performance wise it would be true because it would harm their performance.

he wrote 23 poems and produced 300-500 songs

for those of you who searched "which list includes four types of animal-like protists? " and keep getting these results, the answer is c: flagellates, sarcodines, ciliates, parasites