Tpo 34
The author states that there are three theories about the main causes of the extinction of the Steller's sea cow who is a huge creature lived in water in Siberia, and he provides three reasons for support. However, the professor claims that we still do not know the main causes of the extinction and there are problems with the three theories, and he refutes each of the author's reasons.
First, the reading asserts the sea cow may have been overhunted by the native Siberian people. The lecture counters this idea by saying that the sea cow was a massive creature about nine meters in length and ten tons in weight, and the population of the native Siberian was not very large. So if they did hunt, they do not need many of them. Therefore, the hunting of the native people is not the cause of extinction.
Second, the article points out that the sea cow population became extinct because of the disturbance in the ecosystem caused a decline in their food resources. The professor contradicts this point by telling that if the ecosystem disturbance was severed in 1768, other parts also should be affected not only the kelp which is the main food source for sea cow. In fact, the fishing ship not recorded any decline for the whales at that time. That's mean there was no food shortage for the sea cow.
Third, the reading explains that the extinction of the sea cow caused by the European fur trades who came after 1741. However, the professor posits that the sea cow population was small a long period before 1700. Therefore, the European traders are not the cause of extinction because they arrived after the decline, and there is another cause of the decline in the sea cow population.
Comments
Essay evaluation report
because of the disturbance in the ecosystem caused a decline in their food resources.
because the disturbance in the ecosystem caused a decline in their food resources.
the fishing ship not recorded any decline
the fishing ship has not recorded any decline
the extinction of the sea cow caused by the European fur trades
the extinction of the sea cow are caused by the European fur trades
was small a long period
was small in a long period
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flaws:
No. of Grammatical Errors: 4 2 //still you have grammar issues
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Attribute Value Ideal
Final score: 21 in 30
Category: Good Excellent
No. of Grammatical Errors: 4 2
No. of Spelling Errors: 0 2
No. of Sentences: 13 12
No. of Words: 299 250
No. of Characters: 1363 1200
No. of Different Words: 142 150
Fourth Root of Number of Words: 4.158 4.2
Average Word Length: 4.559 4.6
Word Length SD: 2.284 2.4
No. of Words greater than 5 chars: 92 80
No. of Words greater than 6 chars: 65 60
No. of Words greater than 7 chars: 38 40
No. of Words greater than 8 chars: 22 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 23 21.0
Sentence Length SD: 9.471 7.5
Use of Discourse Markers (%): 0.769 0.12
Sentence-Text Coherence: 0.399 0.35
Sentence-Para Coherence: 0.62 0.50
Sentence-Sentence Coherence: 0.146 0.07
Number of Paragraphs: 4 4
Grammar and spelling errors:
Line 5, column 441, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: That's
...ny decline for the whales at that time. Thats mean there was no food shortage for the...
^^^^^
Transition Words or Phrases used:
also, first, however, if, may, second, so, still, therefore, third, in fact
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 14.0 10.4613686534 134% => OK
Auxiliary verbs: 3.0 5.04856512141 59% => OK
Conjunction : 6.0 7.30242825607 82% => OK
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 18.0 22.412803532 80% => OK
Preposition: 33.0 30.3222958057 109% => OK
Nominalization: 11.0 5.01324503311 219% => Less nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1399.0 1373.03311258 102% => OK
No of words: 299.0 270.72406181 110% => OK
Chars per words: 4.67892976589 5.08290768461 92% => OK
Fourth root words length: 4.1583189471 4.04702891845 103% => OK
Word Length SD: 2.34983096706 2.5805825403 91% => OK
Unique words: 147.0 145.348785872 101% => OK
Unique words percentage: 0.491638795987 0.540411800872 91% => More unique words wanted or less content wanted.
syllable_count: 425.7 419.366225166 102% => 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: 11.0 8.23620309051 134% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 4.0 1.51434878587 264% => Less conjunction wanted as sentence beginning.
Preposition: 1.0 2.5761589404 39% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 13.0 13.0662251656 99% => OK
Sentence length: 23.0 21.2450331126 108% => OK
Sentence length SD: 55.4150557373 49.2860985944 112% => OK
Chars per sentence: 107.615384615 110.228320801 98% => OK
Words per sentence: 23.0 21.698381199 106% => OK
Discourse Markers: 5.76923076923 7.06452816374 82% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 1.0 4.33554083885 23% => More positive sentences wanted.
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 8.0 4.27373068433 187% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.612785232902 0.272083759551 225% => OK
Sentence topic coherence: 0.222493591748 0.0996497079465 223% => Sentence topic similarity is high.
Sentence topic coherence SD: 0.112783798002 0.0662205650399 170% => OK
Paragraph topic coherence: 0.357912611989 0.162205337803 221% => OK
Paragraph topic coherence SD: 0.0654405848436 0.0443174109184 148% => OK
Essay readability:
automated_readability_index: 12.1 13.3589403974 91% => Automated_readability_index is low.
flesch_reading_ease: 65.05 53.8541721854 121% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 10.16 12.2367328918 83% => OK
dale_chall_readability_score: 7.68 8.42419426049 91% => OK
difficult_words: 55.0 63.6247240618 86% => OK
linsear_write_formula: 13.0 10.7273730684 121% => OK
gunning_fog: 11.2 10.498013245 107% => OK
text_standard: 13.0 11.2008830022 116% => OK
What are above readability scores?
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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.