The answer is headaches,anxiety,depression,and sleeplessness.
From what I could find, Sirens are asking for help. The song they sing is a cry for help. They are described as acting/singing like a "damsels in distress".
Answer: the animal cell has a mitochondria while the plant cell doesn’t
Explanation:
Get an answer for 'How does the narrator's attitude change towards the raven as "The The Raven makes the speaker remember his lost Lenore, whom he had hoped to Man doth not yield him to theangels, nor unto death utterly, save only.