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.
The reading states that there are three theories about the presence of 52-hertz whale which sings at an unusual frequency.The lecturer, however, finds the idea dubious and casts doubt on the reasons proposed by the reading passage.
The author argures that this whale can be the child of two different whale species, so its specific characters is the reslt of combination. Conversely, the lecturer brings up the idea that if the 52-hertz whale is the offspring of two seperate species it have to has a migration pattern alike other species. But the observation shows that it has its own unsual pattern which is different from others.
Furthermore, the reading passage holds the view that this unsual song may is the result of some damages occured for the whale and disabled it to hear others songs and prevents it to follow in that way. On the contrary, the professor underlines the fact that the high pitch relys on the physical structure of the throat. So the unsual songs do not depend on whale's problem in hearing others sound, because there is no connection between the hearing and throat structure.
Finally, the reading states that this whale may be the last member of its species and all the other members have died. In contrast, the speaker dismisses this issue due to the fact that the technology which scientists use in this days, have used many decades. As a result, if there were any other member of its species, they would have been detected, but no song have been heard before this one.
Grammar and spelling errors:
Line 1, column 123, Rule ID: SENTENCE_WHITESPACE
Message: Add a space between sentences
Suggestion: The
...ale which sings at an unusual frequency.The lecturer, however, finds the idea dubio...
^^^
Line 2, column 1, Rule ID: ENGLISH_WORD_REPEAT_BEGINNING_RULE
Message: Three successive sentences begin with the same word. Reword the sentence or use a thesaurus to find a synonym.
...asons proposed by the reading passage. The author argures that this whale can be t...
^^^
Line 2, column 255, Rule ID: IT_VBZ[1]
Message: Did you mean 'has'?
Suggestion: has
...he offspring of two seperate species it have to has a migration pattern alike other ...
^^^^
Line 2, column 263, Rule ID: TO_NON_BASE[1]
Message: The verb after "to" should be in the base form: 'have'.
Suggestion: have
...ring of two seperate species it have to has a migration pattern alike other species...
^^^
Line 3, column 357, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'whales'' or 'whale's'?
Suggestion: whales'; whale's
...t. So the unsual songs do not depend on whales problem in hearing others sound, becaus...
^^^^^^
Line 4, column 225, Rule ID: THIS_NNS[1]
Message: Did you mean 'these'?
Suggestion: these
... the technology which scientists use in this days, have used many decades. As a resu...
^^^^
Transition Words or Phrases used:
but, conversely, finally, furthermore, however, if, may, so, in contrast, as a result, on the contrary
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 11.0 10.4613686534 105% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 24.0 22.412803532 107% => OK
Preposition: 27.0 30.3222958057 89% => OK
Nominalization: 5.0 5.01324503311 100% => OK
Performance on vocabulary words:
No of characters: 1245.0 1373.03311258 91% => OK
No of words: 260.0 270.72406181 96% => OK
Chars per words: 4.78846153846 5.08290768461 94% => OK
Fourth root words length: 4.01553427287 4.04702891845 99% => OK
Word Length SD: 2.4120598136 2.5805825403 93% => OK
Unique words: 144.0 145.348785872 99% => OK
Unique words percentage: 0.553846153846 0.540411800872 102% => OK
syllable_count: 372.6 419.366225166 89% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Article: 8.0 8.23620309051 97% => OK
Subordination: 3.0 1.25165562914 240% => Less adverbial clause wanted.
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 10.0 13.0662251656 77% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 26.0 21.2450331126 122% => The Avg. Sentence Length is relatively long.
Sentence length SD: 39.19553546 49.2860985944 80% => OK
Chars per sentence: 124.5 110.228320801 113% => OK
Words per sentence: 26.0 21.698381199 120% => OK
Discourse Markers: 10.2 7.06452816374 144% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 6.0 4.19205298013 143% => OK
Sentences with positive sentiment : 0.0 4.33554083885 0% => More positive sentences wanted.
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.244510672688 0.272083759551 90% => OK
Sentence topic coherence: 0.0935358779405 0.0996497079465 94% => OK
Sentence topic coherence SD: 0.0640361863918 0.0662205650399 97% => OK
Paragraph topic coherence: 0.137020662875 0.162205337803 84% => OK
Paragraph topic coherence SD: 0.0484334523989 0.0443174109184 109% => OK
Essay readability:
automated_readability_index: 14.1 13.3589403974 106% => OK
flesch_reading_ease: 62.01 53.8541721854 115% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 11.1 11.0289183223 101% => OK
coleman_liau_index: 10.8 12.2367328918 88% => OK
dale_chall_readability_score: 8.21 8.42419426049 97% => OK
difficult_words: 54.0 63.6247240618 85% => More difficult words wanted.
linsear_write_formula: 13.5 10.7273730684 126% => OK
gunning_fog: 12.4 10.498013245 118% => OK
text_standard: 14.0 11.2008830022 125% => OK
What are above readability scores?
---------------------
Rates: 81.6666666667 out of 100
Scores by essay e-grader: 24.5 Out of 30
---------------------
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.