TOEFL integrated writing: The sea otter

The reading and the lecture are both about rapid decline of sea otter. Whereas the author of the reading states that pollution is the major cause of reduction in population of sea otter, the lecture suggests that predation is most likely factor contributing to decline in number of sea otter. The lecture casts doubt on the main points made in the reading by providing three reasons.

First of all, according to reading, pollutants taken from the water sample provide evidence for the pollution theory. However, the lecture disputes this point. He posits that if reduction in the number of sea otter due to the pollutants in water, the would have been found on shores. Furthermore, he mentions that absence of the sea otters on shores indicates the sea otter were killed and eaten by predator.

Secondly, The reading explains that pollution also decrease other sea animal with the sea otter in the same area. Nevertheless, the lecture refutes this argument. He argues that because the whale population decreased, the orca had to eat otter instead of whales. As a result the otter population diminished.

Finally, the reading claims that environmental factors, which led to different level of pollutant concentration, perfectly explains uneven pattern of sea otter population. On the other hand, the lecture believe that generally orca preys large whale but otter population is decrease where orca present and number of sea otter are stable where orca absence. Moreover, he feels that the uneven patter of sea otter population is due to predation.

In conclusion, although the reading and the lecture are both about hypothesis of decline of sea otter. The three main points made in the reading are effectively challenged by the lecture.

Votes
Average: 7.3 (1 vote)
Essay Categories

Grammar and spelling errors:
Line 3, column 410, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...tter were killed and eaten by predator. Secondly, The reading explains that poll...
^^^^^
Line 5, column 264, Rule ID: SENTENCE_FRAGMENT[1]
Message: “As” at the beginning of a sentence requires a 2nd clause. Maybe a comma, question or exclamation mark is missing, or the sentence is incomplete and should be joined with the following sentence.
...rca had to eat otter instead of whales. As a result the otter population diminishe...
^^

Transition Words or Phrases used:
also, but, finally, first, furthermore, however, if, moreover, nevertheless, second, secondly, so, whereas, in conclusion, as a result, first of all, on the other hand

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 10.0 10.4613686534 96% => OK
Auxiliary verbs: 1.0 5.04856512141 20% => OK
Conjunction : 5.0 7.30242825607 68% => OK
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 15.0 22.412803532 67% => OK
Preposition: 40.0 30.3222958057 132% => OK
Nominalization: 18.0 5.01324503311 359% => Less nominalizations (nouns with a suffix like: tion ment ence ance) wanted.

Performance on vocabulary words:
No of characters: 1472.0 1373.03311258 107% => OK
No of words: 284.0 270.72406181 105% => OK
Chars per words: 5.18309859155 5.08290768461 102% => OK
Fourth root words length: 4.10515524023 4.04702891845 101% => OK
Word Length SD: 2.64258158869 2.5805825403 102% => OK
Unique words: 139.0 145.348785872 96% => OK
Unique words percentage: 0.489436619718 0.540411800872 91% => More unique words wanted or less content wanted.
syllable_count: 461.7 419.366225166 110% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 11.0 8.23620309051 134% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 3.0 2.5761589404 116% => OK

Performance on sentences:
How many sentences: 16.0 13.0662251656 122% => OK
Sentence length: 17.0 21.2450331126 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 48.779478267 49.2860985944 99% => OK
Chars per sentence: 92.0 110.228320801 83% => OK
Words per sentence: 17.75 21.698381199 82% => OK
Discourse Markers: 10.4375 7.06452816374 148% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => 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: 0.28169414438 0.272083759551 104% => OK
Sentence topic coherence: 0.113659614577 0.0996497079465 114% => OK
Sentence topic coherence SD: 0.0877775558731 0.0662205650399 133% => OK
Paragraph topic coherence: 0.186133723838 0.162205337803 115% => OK
Paragraph topic coherence SD: 0.0356847723187 0.0443174109184 81% => OK

Essay readability:
automated_readability_index: 11.8 13.3589403974 88% => Automated_readability_index is low.
flesch_reading_ease: 54.22 53.8541721854 101% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 12.47 12.2367328918 102% => OK
dale_chall_readability_score: 8.26 8.42419426049 98% => OK
difficult_words: 68.0 63.6247240618 107% => OK
linsear_write_formula: 7.5 10.7273730684 70% => OK
gunning_fog: 8.8 10.498013245 84% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?

---------------------

Rates: 73.3333333333 out of 100
Scores by essay e-grader: 22.0 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.