Underwater, whales produce loud noises: known as songs. Scientists use whale songs to study the movements for migrations, of groups of whales. Recently, scientists discovered something unusual: a single, solitary whale whose song is unlike that of all other known whales. The most notable difference between this unusual whale's song and those of other whales is its high pitch or frequency This unique whale is called the 52-hertz whale because it sings at the unusual frequency of 52 hertz, a much higher pitch than normal. When the 52-hertz whale was first detected, the cause of its uniquely high-pitched song was unknown; however, scientists now have several theories to explain it.
One theory holds that the 52-hertz whale may be a hybrid: the offspring of two different whale species Whales of different species are known to interbreed and produce hybrid offspring that combine characteristics from each of their parents' species. As a hybrid, the whale may have a unique song, different from that of either of its parents because it resulted from a combi nation of the two
A second theory is that the 52-hertz whale may have a damaged sense of hearing Just as people learn to speak by copying the sounds they hear, whales may learn to sing by listening to the sounds of other whales* songs. When people are born deaf, their speech may sound different from that of people born hearing. Similarly, the 52-hertz whale’s songs may sound different simply because it cannot hear the songs of other whales.
A third theory holds that the 52-hertz whale may be the only known member of a rare species Perhaps there were once many more whales of this species, but most are now gone. It seems to be entirely unique only because most of its species has died out.
Both the reading passage and the lecture talk about a unique species of whale called the 52-hertz whale. According to the reading passage, scientists explain this uniqueness with three hypotheses. However, the professor finds these ideas debatable and flawed, citing three reasons to reject the points mentioned in the reading passage.
First, although the author of the reading passage states that the certain species is more likely to be a hybrid one (an offspring of two different whale species), the lecturer counters that argument by asserting that migration pattern refutes this hypothesis. In his opinion, the migration pattern of hybrid whales is similar to other usual species; however, the 52-hertz whale migrates alone differently from other species. Therefore, it is unlikely that this 52-hertz whale is classified as a hybrid one.
Secondly, both the writer and the speaker address the subject of the high pitch song of the whale. The reading passage goes on to mention that the cause of producing this high pitch song is that the whale is deaf. Because the whale cannot hear so well, it cannot generate the right frequency in its song. Nonetheless, the professor supports a contradictory view as compared to that of the reading passage; he claims that generating the high pitch song is the result of the unique physical structure of the throat of the 52-hertz species. The lecturer points out that there is no connection between being deaf of the whale and its high pitch song based on this assumption.
Third, to respond to the assertion that the 52-hertz whale is a member of a scarce species of whales, lots of which have died out, the professor declares that the 52-hertz species that has been found is the only one that has been observed so far. The speaker puts forward a convincing argument, mentioning that if this whale is the only known member of that family, parents should have been observed in the environment. Also, the parents must have similar songs to the offspring. However, not only have the parents of the same species been found yet but a similar song to that of the species has not been identified.
Transition Words or Phrases used:
also, but, first, however, if, nonetheless, second, secondly, so, therefore, third, well
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 18.0 10.4613686534 172% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 6.0 7.30242825607 82% => OK
Relative clauses : 17.0 12.0772626932 141% => OK
Pronoun: 29.0 22.412803532 129% => Less pronouns wanted
Preposition: 41.0 30.3222958057 135% => OK
Nominalization: 9.0 5.01324503311 180% => OK
Performance on vocabulary words:
No of characters: 1779.0 1373.03311258 130% => OK
No of words: 359.0 270.72406181 133% => OK
Chars per words: 4.95543175487 5.08290768461 97% => OK
Fourth root words length: 4.35284910392 4.04702891845 108% => OK
Word Length SD: 2.50814580615 2.5805825403 97% => OK
Unique words: 168.0 145.348785872 116% => OK
Unique words percentage: 0.467966573816 0.540411800872 87% => More unique words wanted or less content wanted.
syllable_count: 529.2 419.366225166 126% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 3.0 3.25607064018 92% => OK
Article: 10.0 8.23620309051 121% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 3.0 2.5761589404 116% => OK
Performance on sentences:
How many sentences: 15.0 13.0662251656 115% => OK
Sentence length: 23.0 21.2450331126 108% => OK
Sentence length SD: 59.8453562665 49.2860985944 121% => OK
Chars per sentence: 118.6 110.228320801 108% => OK
Words per sentence: 23.9333333333 21.698381199 110% => OK
Discourse Markers: 5.86666666667 7.06452816374 83% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 7.0 4.27373068433 164% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.27200368913 0.272083759551 100% => OK
Sentence topic coherence: 0.109434322088 0.0996497079465 110% => OK
Sentence topic coherence SD: 0.0612696759917 0.0662205650399 93% => OK
Paragraph topic coherence: 0.159381747356 0.162205337803 98% => OK
Paragraph topic coherence SD: 0.0519086265411 0.0443174109184 117% => OK
Essay readability:
automated_readability_index: 13.9 13.3589403974 104% => OK
flesch_reading_ease: 56.59 53.8541721854 105% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 11.1 11.0289183223 101% => OK
coleman_liau_index: 11.78 12.2367328918 96% => OK
dale_chall_readability_score: 8.25 8.42419426049 98% => OK
difficult_words: 79.0 63.6247240618 124% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 11.2 10.498013245 107% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
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Write the essay in 20 minutes.
Rates: 73.3333333333 out of 100
Scores by essay e-grader: 22.0 Out of 30
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.