Answer: In his experiment, Pavlov used a metronome as his neutral stimulus. By itself the metronome did not elicit a response from the dogs. Next, <u>Pavlov began the conditioning procedure, whereby the clicking metronome was introduced just before he gave food to his dogs.</u>
Answer is A.
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The compound is known as "<span>xanthine" and isnt only found in caffeine, it can also be found in theobromine. </span>
Answer:
1) respiration 2) photosynthesis.
Explanation:
Answer - A
Prokaryotic cells, being unicellular organisms, do not have a defined nucleus. They have a nucleoid in place of the nucleus which is formed of a single chromosome consisting of double stranded DNA.