The zebra mussels are some shellfishes that are native to Eastern Europe. These fishes have been spreading to other parts such as North America. The reading passage claims that zebra mussels cannot be stopped to fulfill all of North America region and be a horrid threat to native fishes. Although, the professor says that they can not be so dangerous for other fishes for the following reasons.
First, the reading passage mentions that many of zebra mussels are transported to North America with ships. These ships use ballast water to balance and with these waters, many zebra mussels are taken to North Ameria. On the other hand, the professor says that this happening was for the time that people did not have knowledge. Nowadays, we can rule for the ships to change their ballast water in the ocean before North America waters and zebra mussels will die in salt water.
Second, zebra mussels are hardy species as the reading passage says. They have the high rate of fertility and they won't have any predator in new habitat so they will be predominant but according to the professor statements, maybe they do not have any predator in the new region at first but as time passes, they will have some. For example, in Eastern Europe, they did not have any threat at first but after some periods some birds explore them. Zebra mussels are good food for birds and the same procedure will happen in North America too.
Third, zebra mussels are plankton eater and as the reading passage claims, they will be a competitor for other plankton-eaters and it will decrease the population of native fishes. Although, the professor mentions that maybe they have negative impacts on plankton eaters but they can be beneficial too. These fishes generate some nutrient that is a good food for fishes that live in the button of North America waters. So it can help to feed such these button-feeding fishes.
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Transition Words or Phrases used:
but, first, may, second, so, third, as for, for example, such as, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 16.0 10.4613686534 153% => OK
Auxiliary verbs: 11.0 5.04856512141 218% => Less auxiliary verb wanted.
Conjunction : 11.0 7.30242825607 151% => OK
Relative clauses : 9.0 12.0772626932 75% => More relative clauses wanted.
Pronoun: 30.0 22.412803532 134% => Less pronouns wanted
Preposition: 30.0 30.3222958057 99% => OK
Nominalization: 2.0 5.01324503311 40% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1571.0 1373.03311258 114% => OK
No of words: 326.0 270.72406181 120% => OK
Chars per words: 4.81901840491 5.08290768461 95% => OK
Fourth root words length: 4.24917287072 4.04702891845 105% => OK
Word Length SD: 2.29566133681 2.5805825403 89% => OK
Unique words: 142.0 145.348785872 98% => OK
Unique words percentage: 0.435582822086 0.540411800872 81% => More unique words wanted or less content wanted.
syllable_count: 491.4 419.366225166 117% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 8.0 3.25607064018 246% => Less pronouns wanted as sentence beginning.
Article: 6.0 8.23620309051 73% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 16.0 13.0662251656 122% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 47.8516179847 49.2860985944 97% => OK
Chars per sentence: 98.1875 110.228320801 89% => OK
Words per sentence: 20.375 21.698381199 94% => OK
Discourse Markers: 5.1875 7.06452816374 73% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 7.0 4.33554083885 161% => OK
Sentences with negative sentiment : 3.0 4.45695364238 67% => OK
Sentences with neutral sentiment: 6.0 4.27373068433 140% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.451358385593 0.272083759551 166% => OK
Sentence topic coherence: 0.168955483819 0.0996497079465 170% => OK
Sentence topic coherence SD: 0.0828207590518 0.0662205650399 125% => OK
Paragraph topic coherence: 0.302153238814 0.162205337803 186% => OK
Paragraph topic coherence SD: 0.065615743397 0.0443174109184 148% => OK
Essay readability:
automated_readability_index: 11.5 13.3589403974 86% => Automated_readability_index is low.
flesch_reading_ease: 59.64 53.8541721854 111% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 10.68 12.2367328918 87% => OK
dale_chall_readability_score: 7.44 8.42419426049 88% => OK
difficult_words: 58.0 63.6247240618 91% => OK
linsear_write_formula: 8.0 10.7273730684 75% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?
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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.