Unlike the passage, which claims that the invasion of zebra mussel is unstoppable, and provides three reasons. The lecture opposes this opinion, and he says there are many ways to control zebra mussel's spread, unlike the past; it should not represent series threat
First of all, the writer suggests that zebra mussel could attach easily to the bottom of any ship crossing Europe's waterway towards to North America. The speaker says that is true if the ship empty out the water when it reaches North America, but if the ships are required to empty out this water and refill again from the ocean water while it out, the salt water of the ocean will completely kill the zebra mussel.
Secondly, the professor refuses the idea mentioned in the article, which suggests that zebra mussel dominates because there are no predators and high rate of reproduction. He explains that this could be in the beginning, but in Europe new aquatic birds were attracted to zebra mussel and take it as a fundamental source of food when switching from whatever they are eating to zebra mussel. He puts forth the idea that birds can eat a lot of zebra mussel, and by this way it creates natural predators, and zebra mussel unlikely to be dominant.
Thirdly, the professor explains that it might be true that zebra mussel eat plankton, which has negative impact on fish population because it represents source of food for fish population, but He mentions that it has positive effect too. He elaborates on this by mentioning that zebra mussel generates nutrients that feed bottom fish population, therefore, the bottom fish population will increase, even if the plankton eaten fish decreased.
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- TOEFL T P O 11 Integrated Writing Task 68
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Grammar and spelling errors:
Line 7, column 193, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... source of food for fish population, but He mentions that it has positive effect ...
^^
Transition Words or Phrases used:
but, first, if, second, secondly, so, therefore, third, thirdly, while, first of all
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 10.0 10.4613686534 96% => OK
Auxiliary verbs: 7.0 5.04856512141 139% => OK
Conjunction : 10.0 7.30242825607 137% => OK
Relative clauses : 16.0 12.0772626932 132% => OK
Pronoun: 30.0 22.412803532 134% => Less pronouns wanted
Preposition: 28.0 30.3222958057 92% => OK
Nominalization: 5.0 5.01324503311 100% => OK
Performance on vocabulary words:
No of characters: 1398.0 1373.03311258 102% => OK
No of words: 282.0 270.72406181 104% => OK
Chars per words: 4.95744680851 5.08290768461 98% => OK
Fourth root words length: 4.09790868904 4.04702891845 101% => OK
Word Length SD: 2.43613666138 2.5805825403 94% => OK
Unique words: 149.0 145.348785872 103% => OK
Unique words percentage: 0.528368794326 0.540411800872 98% => OK
syllable_count: 430.2 419.366225166 103% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 7.0 8.23620309051 85% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 7.0 1.51434878587 462% => Less conjunction wanted as sentence beginning.
Preposition: 0.0 2.5761589404 0% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 8.0 13.0662251656 61% => 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: 35.0 21.2450331126 165% => The Avg. Sentence Length is relatively long.
Sentence length SD: 59.1264534705 49.2860985944 120% => OK
Chars per sentence: 174.75 110.228320801 159% => OK
Words per sentence: 35.25 21.698381199 162% => OK
Discourse Markers: 10.5 7.06452816374 149% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 3.0 4.45695364238 67% => OK
Sentences with neutral sentiment: 0.0 4.27373068433 0% => More facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.466985609973 0.272083759551 172% => OK
Sentence topic coherence: 0.221966573097 0.0996497079465 223% => Sentence topic similarity is high.
Sentence topic coherence SD: 0.0479709302347 0.0662205650399 72% => OK
Paragraph topic coherence: 0.276978087758 0.162205337803 171% => OK
Paragraph topic coherence SD: 0.058916633898 0.0443174109184 133% => OK
Essay readability:
automated_readability_index: 19.6 13.3589403974 147% => OK
flesch_reading_ease: 44.41 53.8541721854 82% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 15.8 11.0289183223 143% => OK
coleman_liau_index: 12.08 12.2367328918 99% => OK
dale_chall_readability_score: 9.29 8.42419426049 110% => OK
difficult_words: 70.0 63.6247240618 110% => OK
linsear_write_formula: 18.0 10.7273730684 168% => OK
gunning_fog: 16.0 10.498013245 152% => OK
text_standard: 16.0 11.2008830022 143% => OK
What are above readability scores?
---------------------
Rates: 65.0 out of 100
Scores by essay e-grader: 19.5 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.