Answer:
The waiting room became the conditioned stimulus.
Explanation:
Conditioned stimulus is the reflexive behaviors or the learned behavior.
This stimulus may be defined as a neutral stimulus that with some time and some training will evoke a response by continuously being associated with any other natural occurring stimulus.
to this sequence UUAGCU
This is complementary base pairing rule that DNA Transcription and Replication follow.
A dichotomous key involves 3 keys