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

Essay topics:

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 twoA 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.Word Count: 288

The reading states that scientists have several hypothesis for explanation of unusual 52-hertz whale and provide three theories about 52-hertz whale. However, the professor casts doubt on all of them by saying that all the three theories have flaws.
First, the passage states that paernts of 52-herts whale may be were two different whale spicies, and the 52-hertz whale is a hybrid offspring of them. Nevertheless, the professor challanged this point by stating that hybrid whale and normal whales have the same migration patern, but the 52-hertz whale shows different migration patern compared to other normal whales. This seems unlikely that 52-hertz whale is a hybrid.
Second, the reading claims that because of a damege to sense of hearing, 52-hertz whale has unusual high pitch. The lecture, on the other hand, says that this point cannot explain the high feriquency of the whale. The throut is responsible for producing song and such a high frequency cannot be a result of damage in hearing system. In fact, producing the high pich or frequency needs a extremely powerful throut, so 52-hertz whale can hear the songs of other whales.
Third, the reading claims that the 52-hertz whale is a member of rare spicies, which other members of the specie has died. This theory rebutted by the professor. he mentions that if the 52- hertz whale is a memebr of rare specie, it have to had parents. The technology for hearing whales songs have been useing for dacades, and parents of the 52 hertz whale were alive, so why the parents were not detected before? Thus, 52-hertz whale is not the only member of a rare species.In sum, all the three aformentioned theories in the passage are effectively rejected by the professor.

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Comments

Grammar and spelling errors:
Line 1, column 41, Rule ID: MANY_NN[1]
Message: Possible agreement error. The noun hypothesis seems to be countable; consider using: 'several hypotheses', 'several hypothesises'.
Suggestion: several hypotheses; several hypothesises
...The reading states that scientists have several hypothesis for explanation of unusual 52-hertz wha...
^^^^^^^^^^^^^^^^^^
Line 3, column 386, Rule ID: EN_A_VS_AN
Message: Use 'an' instead of 'a' if the following word starts with a vowel sound, e.g. 'an article', 'an hour'
Suggestion: an
...ducing the high pich or frequency needs a extremely powerful throut, so 52-hertz ...
^
Line 4, column 162, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: He
... This theory rebutted by the professor. he mentions that if the 52- hertz whale is...
^^
Line 4, column 233, Rule ID: IT_VBZ[1]
Message: Did you mean 'has'?
Suggestion: has
...tz whale is a memebr of rare specie, it have to had parents. The technology for hear...
^^^^
Line 4, column 477, Rule ID: SENTENCE_WHITESPACE
Message: Add a space between sentences
Suggestion: In
...s not the only member of a rare species.In sum, all the three aformentioned theori...
^^

Transition Words or Phrases used:
but, first, however, if, may, nevertheless, second, so, third, thus, in fact, on the other hand

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 13.0 10.4613686534 124% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 10.0 12.0772626932 83% => OK
Pronoun: 17.0 22.412803532 76% => OK
Preposition: 29.0 30.3222958057 96% => OK
Nominalization: 3.0 5.01324503311 60% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.

Performance on vocabulary words:
No of characters: 1438.0 1373.03311258 105% => OK
No of words: 289.0 270.72406181 107% => OK
Chars per words: 4.97577854671 5.08290768461 98% => OK
Fourth root words length: 4.12310562562 4.04702891845 102% => OK
Word Length SD: 2.47367819719 2.5805825403 96% => OK
Unique words: 141.0 145.348785872 97% => OK
Unique words percentage: 0.487889273356 0.540411800872 90% => More unique words wanted or less content wanted.
syllable_count: 418.5 419.366225166 100% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 9.0 8.23620309051 109% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 3.0 1.51434878587 198% => OK
Preposition: 3.0 2.5761589404 116% => OK

Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 44.6981372027 49.2860985944 91% => OK
Chars per sentence: 102.714285714 110.228320801 93% => OK
Words per sentence: 20.6428571429 21.698381199 95% => OK
Discourse Markers: 6.78571428571 7.06452816374 96% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 5.0 4.19205298013 119% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => 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: 0.310049767787 0.272083759551 114% => OK
Sentence topic coherence: 0.129454764744 0.0996497079465 130% => OK
Sentence topic coherence SD: 0.063605449195 0.0662205650399 96% => OK
Paragraph topic coherence: 0.210363458321 0.162205337803 130% => OK
Paragraph topic coherence SD: 0.024145364119 0.0443174109184 54% => OK

Essay readability:
automated_readability_index: 12.3 13.3589403974 92% => Automated_readability_index is low.
flesch_reading_ease: 68.1 53.8541721854 126% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 8.7 11.0289183223 79% => OK
coleman_liau_index: 11.6 12.2367328918 95% => OK
dale_chall_readability_score: 7.63 8.42419426049 91% => OK
difficult_words: 55.0 63.6247240618 86% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?

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Rates: 66.6666666667 out of 100
Scores by essay e-grader: 20.0 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.