The basic needs for the survival of all living organisms are the same. All living organisms need to respire, digest food for obtaining energy, and get rid of metabolic wastes. Cells are capable of performing all the metabolic functions of the body. Hence, cells are called the functional units of life.
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<span>The pair of lines best supports this theme is the below:
</span><span>"Can I see a falling tear, / And not feel my sorrows share?"</span>
<span>B. Metaphor
A metaphor is a comparison of two things without using like or as. In these lines, Helena is being compared to a spaniel. She is saying that no matter how poorly she is treated by Demetrius, she is devoted to him.
Imagery is a vivid description that appeals to the senses. Onomatopoeia is a word that sounds like its meaning. Boom, crack, hush all are onomatopoeias.
Personification is giving non-human things human-like traits. The tree branches waved in the wind is one example. </span>
The effect that this response has on the speaker is that the speaker’s mental state shifts more and more toward madness.
The raven is constantly repeating the same word - nevermore. In the beginning, the narrator just thought it was a weird coincidence that the bird should say that one single word, but as time passes by, the weight of that word becomes unbearable as the narrator realizes that this word can be applied to all of his questions. So as time goes by, the narrator becomes more and more depressed about not being allowed to see his beloved and thus he falls into madness.