TPO 10 The sea otter is a small mammal that lives in waters along the western coast of North America from California to Alaska. When some sea otter populations off the Alaskan coast started rapidly declining a few years ago, it caused much concern because sea otters play an important ecological role in the coastal ecosystem. Experts started investigating the cause of the decline and quickly realized that there were two possible explanations: environmental pollution or attacks by predators. Initially, the pollution hypothesis seemed the more likely of the two.
The reading and lecture are both about the decline of sea otter population. The author of the reading believes that sea otter has important role in the ecosystem. However, the lecturer casts doubts about the claims made in the article, saying that the arguments are inaccurate compared to facts.
First of all, the author points out that decline in sea otter in Alaskan coast was due to pollution from oil rigs and other chemicals. The article notes that upon examination of sea water they found out that it has increased levels of chemicals that cause infections and death to otters. The point is challenged by the lecturer. She says that pollution is weakened by the fact that no one can find any dead sea otter in Alaskan coast. Furthermore, she argues that if infection kills the otter then their bodies can be seen floating in the coast. In addition otter decline is consistent with predation theory, otter being killed by predators and is eaten immediately and cannot be washed in shore.
Secondly, the author contends that sea creatures such as seal and sea lions are also declining. The article establishes that Orca can be affected as well, but they eat on larger prey like whales. However, the lecturer rebuts this argument. She suggests that Orca prefer to eat on whale and whale disappear because of human hunters. Moreover, she elaborates on this by mentioning that sea otter changed their diet and started preying on Orca and it cause the decline of sea lion and seals.
Finally, the author states that the uneven distribution of Otter population was due to the pollution theory. The article denotes that in Alaskan area the otter species decline while in other areas they remain constant. The lecturer, on the other hand, posits that Orca predation is more dominant that pollution theory. She puts forth the idea that location that is accessible to Orca can cause the decline of sea otters population. Also, Orca cannot go to shallow location and it is where some type of sea lion has no decline in population.
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| 2019-04-02 | toefltaker | 85 | view |
| 2019-04-01 | harman442 | 73 | view |
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| 2019-08-31 | zhrnrz-1992 | 80 | view |
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Grammar and spelling errors:
Line 3, column 550, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[2]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: addition,
...s can be seen floating in the coast. In addition otter decline is consistent with predat...
^^^^^^^^
Line 5, column 449, Rule ID: IT_VBZ[1]
Message: Did you mean 'causes'?
Suggestion: causes
...diet and started preying on Orca and it cause the decline of sea lion and seals. ...
^^^^^
Line 7, column 414, Rule ID: POSSESIVE_APOSTROPHE[2]
Message: Possible typo: apostrophe is missing. Did you mean 'otters'' or 'otter's'?
Suggestion: otters'; otter's
...le to Orca can cause the decline of sea otters population. Also, Orca cannot go to sha...
^^^^^^
Transition Words or Phrases used:
also, but, finally, first, furthermore, however, if, moreover, second, secondly, so, then, well, while, in addition, such as, first of all, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 16.0 10.4613686534 153% => OK
Auxiliary verbs: 6.0 5.04856512141 119% => OK
Conjunction : 12.0 7.30242825607 164% => OK
Relative clauses : 20.0 12.0772626932 166% => OK
Pronoun: 34.0 22.412803532 152% => Less pronouns wanted
Preposition: 45.0 30.3222958057 148% => OK
Nominalization: 17.0 5.01324503311 339% => Less nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1688.0 1373.03311258 123% => OK
No of words: 347.0 270.72406181 128% => OK
Chars per words: 4.86455331412 5.08290768461 96% => OK
Fourth root words length: 4.31600926901 4.04702891845 107% => OK
Word Length SD: 2.44534981834 2.5805825403 95% => OK
Unique words: 171.0 145.348785872 118% => OK
Unique words percentage: 0.492795389049 0.540411800872 91% => More unique words wanted or less content wanted.
syllable_count: 527.4 419.366225166 126% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 5.0 3.25607064018 154% => OK
Article: 12.0 8.23620309051 146% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 19.0 13.0662251656 145% => OK
Sentence length: 18.0 21.2450331126 85% => The Avg. Sentence Length is relatively short.
Sentence length SD: 30.9556021986 49.2860985944 63% => OK
Chars per sentence: 88.8421052632 110.228320801 81% => OK
Words per sentence: 18.2631578947 21.698381199 84% => OK
Discourse Markers: 8.26315789474 7.06452816374 117% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 3.0 4.19205298013 72% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 9.0 4.45695364238 202% => Less negative sentences wanted.
Sentences with neutral sentiment: 7.0 4.27373068433 164% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.418608504521 0.272083759551 154% => OK
Sentence topic coherence: 0.13187363505 0.0996497079465 132% => OK
Sentence topic coherence SD: 0.0807336465396 0.0662205650399 122% => OK
Paragraph topic coherence: 0.254154835936 0.162205337803 157% => OK
Paragraph topic coherence SD: 0.0721834179201 0.0443174109184 163% => OK
Essay readability:
automated_readability_index: 10.6 13.3589403974 79% => 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: 10.91 12.2367328918 89% => OK
dale_chall_readability_score: 8.12 8.42419426049 96% => OK
difficult_words: 79.0 63.6247240618 124% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 9.2 10.498013245 88% => OK
text_standard: 11.0 11.2008830022 98% => OK
What are above readability scores?
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Write the essay in 20 minutes.
Rates: 73.3333333333 out of 100
Scores by essay e-grader: 22.0 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 by advanced module of e-grader and human graders.