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 serious threat to freshwater fish populations in all of North America.
First, the history of the zebra mussel's spread suggests that the invasion might be unstoppable. It is a prime example of an invasion made possible by human transportation. From the zebra mussels original habitats in Eastern Europe, ships helped spread it out along new canals built to connect Europe’s waterways. The mussel can attach itself to a ship’ s bottom or can survive in the water - called "ballast water” - that the ship needs to take on to properly balance its cargo. By the early nineteenth century, the mussel had spread to the whole of Europe. It was later carried to the east coast of North America in the ballast water of ships traveling from Europe. The way ships have spread the zebra mussel in the past strongly suggests that the species will soon colonize all of North America.
Moreover, once zebra mussels are carried to a new habitat, they can dominate it. They are a hardy species that does well under a variety of conditions, and they have a high rate of reproduction. Most important, however, zebra mussels often have no predators in their new habitats, and species without natural predators are likely to dominate their habitats.
Finally, zebra mussels are likely to cause a decline in the overall fish population in habitats where they become dominant. The mussels are plankton eaters, which means that they compete for food with many freshwater fish species.
The reading passage and lecture have conflicting opinions about whether or not the zebra mussel spreading cross the oceans can be stopped. The article strongly postulates that there are many factors led to believe the zebra mussle invasion is a critical threat to the fish population. Plus, this invasion can't be obstacled. On the other hand, the listening adamantly delinates that there is no strong evidence shows that invasion is a serious threat to the fish population. Also, there are many ways to stop zebra mussel spreading through oceans.
First and foremost, according to the author of the excerpt, the zebra mussel captures itself to ship or it stays in the ballast water that ships need. meaning that zebra mussel spread can't be stopped. Nonetheless, the lecture offsets these points by insisting that the advent of modern technology produced methods to stop zebra mussel spreading. For instance, the ships can empty and fill the ballast water in the ocean. subsequently, the salt water would kill the zebra mussel.
On top of this, the professor in lecture further points out that at first, there are no predators for zebra mussel. However, Europe local birds would notice the presence of zebra mussel, which means they would change their habitat to eat zebra mussel. As a result, the zebra muscles are less likely to dominate. These claims refute the writer implication of how zebra mussels are more likely to dominate in a new habitat.
The text lastly asserts that the zebra mussels will cause a decrease in the fish population. In other words, the plankton is the main source of these shellfish, so they would surpass other fresh fish for its food. The speaker in lecture counters these points by insisting that the server mussels have a negative impact on some fishes that eat plankton but the deep ocean fish increase
Grammar and spelling errors:
Line 1, column 65, Rule ID: WHETHER[7]
Message: Perhaps you can shorten this phrase to just 'whether'. It is correct though if you mean 'regardless of whether'.
Suggestion: whether
...lecture have conflicting opinions about whether or not the zebra mussel spreading cross the oc...
^^^^^^^^^^^^^^
Line 1, column 306, Rule ID: CANT[1]
Message: Did you mean 'can't' or 'cannot'?
Suggestion: can't; cannot
...he fish population. Plus, this invasion cant be obstacled. On the other hand, the li...
^^^^
Line 3, column 152, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Meaning
...s in the ballast water that ships need. meaning that zebra mussel spread cant be stoppe...
^^^^^^^
Line 3, column 185, Rule ID: CANT[1]
Message: Did you mean 'can't' or 'cannot'?
Suggestion: can't; cannot
... need. meaning that zebra mussel spread cant be stopped. Nonetheless, the lecture of...
^^^^
Line 3, column 422, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Subsequently
...nd fill the ballast water in the ocean. subsequently, the salt water would kill the zebra mu...
^^^^^^^^^^^^
Transition Words or Phrases used:
also, but, first, however, lastly, nonetheless, so, for instance, as a result, in other words, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 12.0 10.4613686534 115% => OK
Auxiliary verbs: 8.0 5.04856512141 158% => OK
Conjunction : 6.0 7.30242825607 82% => OK
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 22.0 22.412803532 98% => OK
Preposition: 31.0 30.3222958057 102% => OK
Nominalization: 7.0 5.01324503311 140% => OK
Performance on vocabulary words:
No of characters: 1539.0 1373.03311258 112% => OK
No of words: 308.0 270.72406181 114% => OK
Chars per words: 4.99675324675 5.08290768461 98% => OK
Fourth root words length: 4.18926351222 4.04702891845 104% => OK
Word Length SD: 2.36743976495 2.5805825403 92% => OK
Unique words: 164.0 145.348785872 113% => OK
Unique words percentage: 0.532467532468 0.540411800872 99% => OK
syllable_count: 465.3 419.366225166 111% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 12.0 8.23620309051 146% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 17.0 13.0662251656 130% => OK
Sentence length: 18.0 21.2450331126 85% => The Avg. Sentence Length is relatively short.
Sentence length SD: 40.4711012279 49.2860985944 82% => OK
Chars per sentence: 90.5294117647 110.228320801 82% => OK
Words per sentence: 18.1176470588 21.698381199 83% => OK
Discourse Markers: 6.58823529412 7.06452816374 93% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 5.0 4.19205298013 119% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 9.0 4.45695364238 202% => Less negative sentences wanted.
Sentences with neutral sentiment: 4.0 4.27373068433 94% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.210292934862 0.272083759551 77% => OK
Sentence topic coherence: 0.0792546834504 0.0996497079465 80% => OK
Sentence topic coherence SD: 0.0458237728157 0.0662205650399 69% => OK
Paragraph topic coherence: 0.131063830605 0.162205337803 81% => OK
Paragraph topic coherence SD: 0.0445316239935 0.0443174109184 100% => OK
Essay readability:
automated_readability_index: 11.2 13.3589403974 84% => Automated_readability_index is low.
flesch_reading_ease: 61.67 53.8541721854 115% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.1 11.0289183223 83% => OK
coleman_liau_index: 11.42 12.2367328918 93% => OK
dale_chall_readability_score: 8.32 8.42419426049 99% => OK
difficult_words: 74.0 63.6247240618 116% => OK
linsear_write_formula: 8.0 10.7273730684 75% => OK
gunning_fog: 9.2 10.498013245 88% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?
---------------------
Rates: 78.3333333333 out of 100
Scores by essay e-grader: 23.5 Out of 30
---------------------
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.