The zebra mussel a freshwater shellfish native to Eastern Europe has long been spreading out from its original habitats and has now reached parts of North America There are reasons to believe that this invasion cannot be stopped and that it poses a seriou

The reading and the lecture are both about The zebra mussel fish which moved from Eastern Europe to North America eventually. More specifically, in regard to the passage, the writer presents three theories about the risk of these fish on the other fish population. The lecturer disputes the claims made in the article. His position is that The zebra mussel effect is not clear and they will not make any serious threat for the other fishs.

First and foremost, the author of the reading states The zebra mussel movment will not stop because its background history and its transport using human's tools like ships and boats, so these fishs will dominate into any new habitat. The article mentions that these fishs will colonize all of North America. This argument is challenged by the lecturer. He claims that in the past there was no control because human's knowlede was limited but now there are a new effective ways to stop the spread of this fish.

Secondly, the author suggests by moving to a new habitat the fish will dominate it and can adapt in any hard condition. In the article, it is said that there are no predators for these fishs in the new places, so they will have high reproduction rate. Again, the prosessor specifically addresses this point when he states there is a perdator for the fish like the birds in Europ because after moving these fish to the new habitat, birds found new source of food which is zebra fish. He goes on to say that the fish started to move to other places, so it is unlikely to dominate new habitat.

Finally, the author brings his argument to a close by suggesting that zebra mussels will cause decrease in the population of the other fishs because they will compete with other fishs on the same resources of food. Not surprisingly, the lecturer takes issue with this claim by contending that it is true they have negative impacts on fishs, but also they have positive impact on the other fishs. He notes that zebra mussels take nutrients to the bottom of the lake which means new food the other fishs.

Votes
Average: 6.3 (1 vote)
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Grammar and spelling errors:
Line 1, column 82, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...t The zebra mussel fish which moved from Eastern Europe to North America eventual...
^^
Line 3, column 471, Rule ID: A_PLURAL[2]
Message: Don't use indefinite articles with plural words. Did you mean 'way'?
Suggestion: way
...mited but now there are a new effective ways to stop the spread of this fish. Se...
^^^^
Line 3, column 498, Rule ID: THIS_NNS[1]
Message: Did you mean 'these'?
Suggestion: these
...ew effective ways to stop the spread of this fish. Secondly, the author suggests...
^^^^
Line 7, column 40, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... Finally, the author brings his argument to a close by suggesting that zebra muss...
^^

Transition Words or Phrases used:
also, but, finally, first, if, second, secondly, so, in regard to, it is true

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 13.0 10.4613686534 124% => OK
Auxiliary verbs: 9.0 5.04856512141 178% => OK
Conjunction : 8.0 7.30242825607 110% => OK
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 34.0 22.412803532 152% => Less pronouns wanted
Preposition: 45.0 30.3222958057 148% => OK
Nominalization: 8.0 5.01324503311 160% => OK

Performance on vocabulary words:
No of characters: 1692.0 1373.03311258 123% => OK
No of words: 362.0 270.72406181 134% => OK
Chars per words: 4.67403314917 5.08290768461 92% => OK
Fourth root words length: 4.36191444098 4.04702891845 108% => OK
Word Length SD: 2.27848143982 2.5805825403 88% => OK
Unique words: 169.0 145.348785872 116% => OK
Unique words percentage: 0.466850828729 0.540411800872 86% => More unique words wanted or less content wanted.
syllable_count: 525.6 419.366225166 125% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 3.25607064018 184% => 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: 15.0 13.0662251656 115% => OK
Sentence length: 24.0 21.2450331126 113% => OK
Sentence length SD: 56.7561646187 49.2860985944 115% => OK
Chars per sentence: 112.8 110.228320801 102% => OK
Words per sentence: 24.1333333333 21.698381199 111% => OK
Discourse Markers: 5.13333333333 7.06452816374 73% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 4.0 4.19205298013 95% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 8.0 4.45695364238 179% => OK
Sentences with neutral sentiment: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.124903548331 0.272083759551 46% => OK
Sentence topic coherence: 0.0528210185173 0.0996497079465 53% => OK
Sentence topic coherence SD: 0.0512360446384 0.0662205650399 77% => OK
Paragraph topic coherence: 0.0906642572751 0.162205337803 56% => OK
Paragraph topic coherence SD: 0.0434545668022 0.0443174109184 98% => OK

Essay readability:
automated_readability_index: 12.6 13.3589403974 94% => Automated_readability_index is low.
flesch_reading_ease: 55.58 53.8541721854 103% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 11.5 11.0289183223 104% => OK
coleman_liau_index: 10.1 12.2367328918 83% => OK
dale_chall_readability_score: 8.01 8.42419426049 95% => OK
difficult_words: 73.0 63.6247240618 115% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 11.6 10.498013245 110% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?

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Rates: 63.3333333333 out of 100
Scores by essay e-grader: 19.0 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.