Absolutely the participle
Answer:
Monotonous = uninteresting,
Or boring.
RNA molecules is produced. RNA polymerase is catalyzed while transcribing DNA molecules into RNAm
I think the bolded words would be "whom Mr. Stein chose". The clause whom Mr. Stein chose is an example of an adjective because the clause describes the word student. Student is the subject of the sentence and is a noun. An adjective describes a noun or another subject. an adverb describes a verb or another adverb.