The article describes zebra mussel as a none stoppable invasion creature to the North American waterways. And the zebra mussel's invasion would cause the shrink of local species. However, the speaker refuses the ideas in the reading material.
To begin with, unlike our predecessors, we could control the transportation of zebra mussels from Eastern Europe to North America. These shellfish was taken into the America by "ballast water". Instead of using fresh-water, we could now ask the ships to fulfill their "ballast water" by sea-water. In this case, fresh-water mussels could be killed by the salty sea-water.
Besides, zebra mussels could only colonize the new habitat in the beginning. The birds are the predators of mussels. Sooner or later, the native birds would find out their new food source, mussels. Until then, the over popularized mussel will become birds dishes.
Moreover, it's unlikely that mussels would eat up all the food in the new habitat. In fact, the mussels could generate more nutrition for the local fish.
All in all, from the professor, the zebra mussels have nature predators in the new habitat. And they could generate more food to the locate fishes. This invasion species would not threat to the local freshwater fish.
Grammar and spelling errors:
Line 9, column 130, Rule ID: A_INFINITVE[1]
Message: Probably a wrong construction: a/the + infinitive
...t. And they could generate more food to the locate fishes. This invasion species would not...
^^^^^^^^^^
Transition Words or Phrases used:
besides, however, moreover, so, then, in fact, to begin with
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 3.0 10.4613686534 29% => More to be verbs wanted.
Auxiliary verbs: 11.0 5.04856512141 218% => Less auxiliary verb wanted.
Conjunction : 3.0 7.30242825607 41% => More conjunction wanted.
Relative clauses : 1.0 12.0772626932 8% => More relative clauses wanted.
Pronoun: 11.0 22.412803532 49% => OK
Preposition: 28.0 30.3222958057 92% => OK
Nominalization: 2.0 5.01324503311 40% => More nominalization wanted.
Performance on vocabulary words:
No of characters: 1080.0 1373.03311258 79% => OK
No of words: 204.0 270.72406181 75% => More content wanted.
Chars per words: 5.29411764706 5.08290768461 104% => OK
Fourth root words length: 3.77926670891 4.04702891845 93% => OK
Word Length SD: 2.65915898167 2.5805825403 103% => OK
Unique words: 118.0 145.348785872 81% => OK
Unique words percentage: 0.578431372549 0.540411800872 107% => OK
syllable_count: 325.8 419.366225166 78% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 5.0 3.25607064018 154% => OK
Interrogative: 0.0 0.116997792494 0% => OK
Article: 7.0 8.23620309051 85% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 7.0 2.5761589404 272% => Less preposition wanted as sentence beginnings.
Performance on sentences:
How many sentences: 16.0 13.0662251656 122% => OK
Sentence length: 12.0 21.2450331126 56% => Sentence length is too short
Sentence length SD: 21.7385027083 49.2860985944 44% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 67.5 110.228320801 61% => OK
Words per sentence: 12.75 21.698381199 59% => More words per sentence wanted.
Discourse Markers: 3.75 7.06452816374 53% => More transition words/phrases wanted.
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 1.0 4.45695364238 22% => More negative sentences wanted.
Sentences with neutral sentiment: 12.0 4.27373068433 281% => Less facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.444160845765 0.272083759551 163% => OK
Sentence topic coherence: 0.144110182529 0.0996497079465 145% => OK
Sentence topic coherence SD: 0.0886928421671 0.0662205650399 134% => OK
Paragraph topic coherence: 0.248108603187 0.162205337803 153% => OK
Paragraph topic coherence SD: 0.046810994181 0.0443174109184 106% => OK
Essay readability:
automated_readability_index: 9.9 13.3589403974 74% => Automated_readability_index is low.
flesch_reading_ease: 59.3 53.8541721854 110% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 8.0 11.0289183223 73% => OK
coleman_liau_index: 12.51 12.2367328918 102% => OK
dale_chall_readability_score: 8.57 8.42419426049 102% => OK
difficult_words: 56.0 63.6247240618 88% => OK
linsear_write_formula: 6.5 10.7273730684 61% => OK
gunning_fog: 6.8 10.498013245 65% => OK
text_standard: 7.0 11.2008830022 62% => The average readability is low. Need to imporve the language.
What are above readability scores?
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Rates: 68.3333333333 out of 100
Scores by essay e-grader: 20.5 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.