The topic is discussing the invasion of zebra mussels. In the article, it claims that the invasion cannot be stopped; however, the professor in the lecture disagrees with the comment for the following reasons.
First, the article mentions that the history of spreading suggests that the invasion might be unstoppable. On the contrary, the professor in the lecture states that people can stop the spreading by some effective ways. For the zebra mussels are carried by ballast water, the ship can be required to empty out the water which full of mussels and refill with ocean water while the ship is still on the ocean.
Second, the mussels will not dominate a area in a long period of time. While the lecture agrees with that mussels have no predator when the they are introduced, once the animals find there is a new food source around them they will change their habits to exploit it.
Finally, the article says that the mussels are likely to trigger a declination on fish population. However, the lecture replies that the mussels will generate nutrients that are eaten by fish that feed near the bottom of the lake or river.
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Grammar and spelling errors:
Line 5, column 39, Rule ID: EN_A_VS_AN
Message: Use 'an' instead of 'a' if the following word starts with a vowel sound, e.g. 'an article', 'an hour'
Suggestion: an
... Second, the mussels will not dominate a area in a long period of time. While th...
^
Line 5, column 56, Rule ID: PERIOD_OF_TIME[1]
Message: Use simply 'period'.
Suggestion: period
...sels will not dominate a area in a long period of time. While the lecture agrees with that mus...
^^^^^^^^^^^^^^
Line 5, column 137, Rule ID: DT_PRP[1]
Message: Possible typo. Did you mean 'the' or 'they'?
Suggestion: the; they
...with that mussels have no predator when the they are introduced, once the animals find t...
^^^^^^^^
Discourse Markers used:
['finally', 'first', 'however', 'second', 'so', 'still', 'while', 'on the contrary']
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance in Part of Speech:
Nouns: 0.255813953488 0.261695866417 98% => OK
Verbs: 0.153488372093 0.158904122519 97% => OK
Adjectives: 0.046511627907 0.0723426182421 64% => OK
Adverbs: 0.0325581395349 0.0435111971325 75% => OK
Pronouns: 0.0279069767442 0.0277247811725 101% => OK
Prepositions: 0.139534883721 0.128828473217 108% => OK
Participles: 0.0325581395349 0.0370669169778 88% => OK
Conjunctions: 2.34810203547 2.5805825403 91% => OK
Infinitives: 0.0139534883721 0.0208969081088 67% => OK
Particles: 0.0046511627907 0.00154638098197 301% => OK
Determiners: 0.172093023256 0.128158765124 134% => OK
Modal_auxiliary: 0.0325581395349 0.0158828679856 205% => OK
WH_determiners: 0.0186046511628 0.0114777025283 162% => OK
Vocabulary words and sentences:
No of characters: 1134.0 1645.83664459 69% => OK
No of words: 195.0 271.125827815 72% => More content wanted.
Chars per words: 5.81538461538 6.08160592843 96% => OK
Fourth root words length: 3.73687570622 4.04852973271 92% => OK
words length more than 5 chars: 0.348717948718 0.374372842146 93% => OK
words length more than 6 chars: 0.261538461538 0.287516216867 91% => OK
words length more than 7 chars: 0.153846153846 0.187439937562 82% => OK
words length more than 8 chars: 0.0717948717949 0.113142543107 63% => OK
Word Length SD: 2.34810203547 2.5805825403 91% => OK
Unique words: 109.0 145.348785872 75% => More unique words wanted.
Unique words percentage: 0.558974358974 0.539623497131 104% => OK
Word variations: 50.393235365 53.8517498576 94% => OK
How many sentences: 9.0 13.0529801325 69% => OK
Sentence length: 21.6666666667 21.7502111507 100% => OK
Sentence length SD: 46.2107357523 49.3711431718 94% => OK
Chars per sentence: 126.0 132.220823453 95% => OK
Words per sentence: 21.6666666667 21.7502111507 100% => OK
Discourse Markers: 0.888888888889 0.878197800319 101% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 3.0 3.39072847682 88% => OK
Readability: 47.8205128205 50.5018328374 95% => OK
Elegance: 2.0 1.90840788429 105% => OK
Coherence and Cohesion:
Essay topic to essay body coherence: 0.626993151089 0.549887131256 114% => OK
Sentence sentence coherence: 0.194297871168 0.142949733639 136% => OK
Sentence sentence coherence SD: 0.0798817057242 0.0787303798458 101% => OK
Sentence paragraph coherence: 0.755380067184 0.631733273073 120% => OK
Sentence paragraph coherence SD: 0.122072348258 0.139662658121 87% => OK
Sentence topic coherence: 0.371829812052 0.266732575781 139% => OK
Sentence topic coherence SD: 0.0586662399786 0.103435571967 57% => OK
Paragraph paragraph coherence: 0.471078811717 0.414875509568 114% => OK
Paragraph paragraph coherence SD: 0.137123070457 0.0530846634433 258% => OK
Paragraph topic coherence: 0.480050397731 0.40443939384 119% => OK
Paragraph topic coherence SD: 0.0470549721632 0.0528353158467 89% => OK
Task Achievement:
Sentences with positive sentiment : 2.0 4.33554083885 46% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 3.0 4.26048565121 70% => OK
Positive topic words: 2.0 3.49668874172 57% => OK
Negative topic words: 4.0 3.62251655629 110% => OK
Neutral topic words: 3.0 3.1766004415 94% => OK
Total topic words: 9.0 10.2958057395 87% => OK
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Minimum 200 words wanted.
Rates: 60.0 out of 100
Scores by essay e-grader: 18.0 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 to cover all aspects.