The article states that the zebra mussel which is native to Eastern Europe spread from their habitats to the North America and their invasion cannot be stopped and now they are a serious threat to the population of fish in America and provides three reasons for support. However, the professor explains that contrary of what is mentioned in the reading it is possible to control the population of these creatures and refutes each of the author's reasons.
First, the reading claims that the history shows that the invasion of the zebra mussel is unstoppable.The professor opposes this point by saying that it is not reasonable to say that we cannot control the population of these creatures because we could not do it in past. He states that in past people did not have enough knowledge to control their population and stop their spread. The professor mentioned that in past ships that crossed the ocean brought a lot of zebra mussels with the water that was full of them but now they know that salty water of the ocean kills these shellfishes. Thus, they could stop their spread by changing the water that they brought from first place.
Second, the author declares that zebra mussels can dominate in new habitats with a variety of conditions easily. Nevertheless, the professor contends that these shellfishes have some predators that can slow their reproduction rate. According to the professor, birds can eat them and stop them from becoming dominant.To stop their population increase, people need to introduce some of their predators at the beginning of their appearances.
Third, the article avers that zebra mussels are likely to cause a decline in the fish population by eating planktons and compete with fishes for food. The professor refutes this point by stating that even though these creatures would have negative impacts on the population of fishes that eat plankton, but they also have some positive impacts for some fishes that live on the bottom of the water. Based on the lecture the zebra mussel produces some nutrients that feed the bottom flow fishes.
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Grammar and spelling errors:
Line 4, column 103, Rule ID: SENTENCE_WHITESPACE
Message: Add a space between sentences
Suggestion: The
...sion of the zebra mussel is unstoppable.The professor opposes this point by saying ...
^^^
Line 4, column 263, Rule ID: IN_PAST[1]
Message: Did you mean: 'in the past'?
Suggestion: in the past
...se creatures because we could not do it in past. He states that in past people did not ...
^^^^^^^
Line 6, column 317, Rule ID: SENTENCE_WHITESPACE
Message: Add a space between sentences
Suggestion: To
...em and stop them from becoming dominant.To stop their population increase, people ...
^^
Transition Words or Phrases used:
also, but, first, however, nevertheless, second, so, third, thus
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 9.0 10.4613686534 86% => OK
Auxiliary verbs: 9.0 5.04856512141 178% => OK
Conjunction : 9.0 7.30242825607 123% => OK
Relative clauses : 21.0 12.0772626932 174% => OK
Pronoun: 50.0 22.412803532 223% => Less pronouns wanted
Preposition: 48.0 30.3222958057 158% => OK
Nominalization: 8.0 5.01324503311 160% => OK
Performance on vocabulary words:
No of characters: 1736.0 1373.03311258 126% => OK
No of words: 347.0 270.72406181 128% => OK
Chars per words: 5.00288184438 5.08290768461 98% => OK
Fourth root words length: 4.31600926901 4.04702891845 107% => OK
Word Length SD: 2.47437179074 2.5805825403 96% => OK
Unique words: 160.0 145.348785872 110% => OK
Unique words percentage: 0.461095100865 0.540411800872 85% => More unique words wanted or less content wanted.
syllable_count: 520.2 419.366225166 124% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 9.0 8.23620309051 109% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 28.0 21.2450331126 132% => The Avg. Sentence Length is relatively long.
Sentence length SD: 64.7204995002 49.2860985944 131% => OK
Chars per sentence: 144.666666667 110.228320801 131% => OK
Words per sentence: 28.9166666667 21.698381199 133% => OK
Discourse Markers: 5.33333333333 7.06452816374 75% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 3.0 4.19205298013 72% => OK
Sentences with positive sentiment : 2.0 4.33554083885 46% => 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: 0.411700325196 0.272083759551 151% => OK
Sentence topic coherence: 0.161659977632 0.0996497079465 162% => OK
Sentence topic coherence SD: 0.0987880510366 0.0662205650399 149% => OK
Paragraph topic coherence: 0.260939054073 0.162205337803 161% => OK
Paragraph topic coherence SD: 0.0471122489861 0.0443174109184 106% => OK
Essay readability:
automated_readability_index: 16.6 13.3589403974 124% => OK
flesch_reading_ease: 51.52 53.8541721854 96% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 13.0 11.0289183223 118% => OK
coleman_liau_index: 12.31 12.2367328918 101% => OK
dale_chall_readability_score: 8.07 8.42419426049 96% => OK
difficult_words: 67.0 63.6247240618 105% => OK
linsear_write_formula: 18.5 10.7273730684 172% => OK
gunning_fog: 13.2 10.498013245 126% => OK
text_standard: 13.0 11.2008830022 116% => OK
What are above readability scores?
---------------------
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.