The article states that the zebra mussel which is native to Eastern Europe has been spreading out from its habitats to the North America and now it becomes a serious threat to the population of fish in America and provides three reasons of 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 the population of zebra mussels 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.
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’s 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 2, 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 ...
^^^^^^^
Transition Words or Phrases used:
also, but, first, however, nevertheless, second, so, third
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 8.0 10.4613686534 76% => OK
Auxiliary verbs: 7.0 5.04856512141 139% => OK
Conjunction : 8.0 7.30242825607 110% => OK
Relative clauses : 20.0 12.0772626932 166% => OK
Pronoun: 44.0 22.412803532 196% => Less pronouns wanted
Preposition: 49.0 30.3222958057 162% => OK
Nominalization: 8.0 5.01324503311 160% => OK
Performance on vocabulary words:
No of characters: 1651.0 1373.03311258 120% => OK
No of words: 333.0 270.72406181 123% => OK
Chars per words: 4.95795795796 5.08290768461 98% => OK
Fourth root words length: 4.27180144563 4.04702891845 106% => OK
Word Length SD: 2.51051769472 2.5805825403 97% => OK
Unique words: 160.0 145.348785872 110% => OK
Unique words percentage: 0.48048048048 0.540411800872 89% => More unique words wanted or less content wanted.
syllable_count: 504.9 419.366225166 120% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => 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: 13.0 13.0662251656 99% => OK
Sentence length: 25.0 21.2450331126 118% => OK
Sentence length SD: 53.2755480842 49.2860985944 108% => OK
Chars per sentence: 127.0 110.228320801 115% => OK
Words per sentence: 25.6153846154 21.698381199 118% => OK
Discourse Markers: 4.46153846154 7.06452816374 63% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
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: 0.419298114039 0.272083759551 154% => OK
Sentence topic coherence: 0.155326917623 0.0996497079465 156% => OK
Sentence topic coherence SD: 0.103188493983 0.0662205650399 156% => OK
Paragraph topic coherence: 0.255853055541 0.162205337803 158% => OK
Paragraph topic coherence SD: 0.0380551271969 0.0443174109184 86% => OK
Essay readability:
automated_readability_index: 14.7 13.3589403974 110% => OK
flesch_reading_ease: 54.56 53.8541721854 101% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 11.9 11.0289183223 108% => OK
coleman_liau_index: 11.78 12.2367328918 96% => OK
dale_chall_readability_score: 8.15 8.42419426049 97% => OK
difficult_words: 69.0 63.6247240618 108% => OK
linsear_write_formula: 14.0 10.7273730684 131% => OK
gunning_fog: 12.0 10.498013245 114% => OK
text_standard: 12.0 11.2008830022 107% => 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.