The reading describes why zebra mussel population, an Eastern European shellfish, are increasing rapidly in North American and how this phenomenon affects other marine species. On the other hand, the professor provides possible ways in order to control Zebra's population and accounts each author's concerns.
Initially, the reading explains how Zebra were transported by attaching to ships which were traveling from Eastern Europe to the North America and this is the main reason of existence of Zebra in America right now. The author says that Zebra survived in ballast water which were required for balancing ships. On the contrary, the professor says even though people in the past did not have enough knowledge to avoid spreading Zebra population in America, sailors now could release the ballad water in salt water in order to kill shellfishes.
In addition, the reading mentions that Zebras would survive in a variety of condition and also have a high rate of reproduction. More importantly, no predators inhabit in their new habitats. In contrast, the professor states that soon or late birds would be aware of new existence of food sources and eat tremendous Zebras.
Last but not the least, the reading states that since Zebras feed on plankton same as many freshwater fish species, fish population has been reduced. Nevertheless, the professor explains that even though Zebras would decline some fish species' population, they would increase bottom fish population since there are less freshwater fishes to utilize nutrient food supplies.
- TOEFL T P O 19 Integrated Writing Task 85
- In 1938 an archaeologist in Iraq acquired a set of clay jars that had been excavated two years earlier by villagers constructing a railroad line. The vessel was about 2,200 years old. Each clay jay contained a copper cylinder surrounding an iron rod. The 79
- TPO-26 - Integrated Writing Task 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 b 80
- TPO-23 - Integrated Writing Task Populations of the yellow cedar, a species of tree that is common in northwestern North America, have been steadily declining for more than a century now, since about 1880. Scientists have advanced several hypotheses expla 80
- Do you agree or disagree with the following statement Leadership comes naturally one cannot learn to be a leader Use specific reasons and examples to support your answer 60
Essay evaluation report
even though Zebras would decline some fish species' population, they would increase bottom fish population
Description: 'they' refers to what? Be sensitive to use pronouns.
Attribute Value Ideal
Final score: 25 in 30
Category: Very Good Excellent
No. of Grammatical Errors: 1 2
No. of Spelling Errors: 0 2
No. of Sentences: 10 12
No. of Words: 245 250
No. of Characters: 1278 1200
No. of Different Words: 148 150
Fourth Root of Number of Words: 3.956 4.2
Average Word Length: 5.216 4.6
Word Length SD: 2.521 2.4
No. of Words greater than 5 chars: 96 80
No. of Words greater than 6 chars: 78 60
No. of Words greater than 7 chars: 52 40
No. of Words greater than 8 chars: 32 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 24.5 21.0
Sentence Length SD: 8.628 7.5
Use of Discourse Markers (%): 0.6 0.12
Sentence-Text Coherence: 0.393 0.35
Sentence-Para Coherence: 0.676 0.50
Sentence-Sentence Coherence: 0.106 0.07
Number of Paragraphs: 4 4
Transition Words or Phrases used:
also, but, nevertheless, so, in addition, in contrast, on the contrary, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 8.0 10.4613686534 76% => OK
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 7.0 12.0772626932 58% => OK
Pronoun: 9.0 22.412803532 40% => OK
Preposition: 32.0 30.3222958057 106% => OK
Nominalization: 11.0 5.01324503311 219% => Less nominalization wanted.
Performance on vocabulary words:
No of characters: 1313.0 1373.03311258 96% => OK
No of words: 245.0 270.72406181 90% => OK
Chars per words: 5.35918367347 5.08290768461 105% => OK
Fourth root words length: 3.95632099841 4.04702891845 98% => OK
Word Length SD: 2.63233347214 2.5805825403 102% => OK
Unique words: 150.0 145.348785872 103% => OK
Unique words percentage: 0.612244897959 0.540411800872 113% => OK
syllable_count: 399.6 419.366225166 95% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Interrogative: 0.0 0.116997792494 0% => OK
Article: 10.0 8.23620309051 121% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 10.0 13.0662251656 77% => OK
Sentence length: 24.0 21.2450331126 113% => OK
Sentence length SD: 53.5522175078 49.2860985944 109% => OK
Chars per sentence: 131.3 110.228320801 119% => OK
Words per sentence: 24.5 21.698381199 113% => OK
Discourse Markers: 8.9 7.06452816374 126% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 1.0 4.45695364238 22% => More negative sentences wanted.
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.349966121279 0.272083759551 129% => OK
Sentence topic coherence: 0.125002433438 0.0996497079465 125% => OK
Sentence topic coherence SD: 0.046497540079 0.0662205650399 70% => OK
Paragraph topic coherence: 0.181895732312 0.162205337803 112% => OK
Paragraph topic coherence SD: 0.0458099974138 0.0443174109184 103% => OK
Essay readability:
automated_readability_index: 16.1 13.3589403974 121% => OK
flesch_reading_ease: 47.12 53.8541721854 87% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 12.7 11.0289183223 115% => OK
coleman_liau_index: 14.1 12.2367328918 115% => OK
dale_chall_readability_score: 9.27 8.42419426049 110% => OK
difficult_words: 69.0 63.6247240618 108% => OK
linsear_write_formula: 11.5 10.7273730684 107% => OK
gunning_fog: 11.6 10.498013245 110% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
---------------------
Rates: 80.0 out of 100
Scores by essay e-grader: 24.0 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.