1. If 30% of DNA is Adenine, what percent is Thymine?

20%

Explanation:

if thymine is 20 % so as the adinine is also 20% , beacuse adinine always pair with thymine

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once upon a midnight dreary, while i pondered, weak and weary,

explanation:

answer: "the beating heart symbolizes the narrator's conscience, or his sense of guilt and wrongdoing" so its b

explanation:

"to look at him, or hear him describe it, he had no guilt. however, poe decided to symbolize this man's subconscious guilt through the heartbeat."