The article and the lecture are both about the decline in the population of the sea otter, a small mammal living in waters along western coast of North America. The author supports the enviromental pollution hypothesis as being responsible for decrease in the sea otter population and gives three reasons. On the other hand, the lecturer disagrees with the enviromental pollution theory and believes that the attack by predators is the main reason for the decline of the sea otter population.
Firstly, the author mentions that water samples have revealed high levels of pollutant chemicals which have reduced sea otter resisitance to fight with infections and causing sea otter population decline. The lecturer contradicts this statement by explaining that no dead bodies have been found on beaches which can prove that sea otter mammals are dying due to infection, instead finding no dead bodies is more consistent with the theory of attacks by predators who eat sea otter mammals bodies.
Secondly, the author explains that because of pollution, many other mammals such as seals and sea lions are decreasing in numbers and the widely occuring predator, Orca, prefer whales over these sea mammals. So, the author believes that Orca could not be the reason for the decrease in population of these small mammals. The lecture counters this statement by mentioning that whales have disappeared from these waters due to increased hunting by humans and as a result, Orca has started hunting these small mammals as they have no other option to survive.
Thirdly, the author claims that ocean currents or other enviromental factors lead to uneven distribution of pollution in different areas of water and thus, causing uneven distribution of otter population. The lecture challenges this argument and explains that uneven distribution of otter population is better explained by predator theory as otter population is less in areas which are more accessible for the predators. He, furthre, adds that as Orca have less access to rocky and shallow area, the otter population is more in these areas.
In conclusion, the lecturer effectively casts doubt on all the claims made in the article and supports the predator theory for decline in sea otter population.
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Transition Words or Phrases used:
but, first, firstly, if, second, secondly, so, third, thirdly, thus, in conclusion, such as, as a result, 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: 2.0 5.04856512141 40% => OK
Conjunction : 12.0 7.30242825607 164% => OK
Relative clauses : 14.0 12.0772626932 116% => OK
Pronoun: 19.0 22.412803532 85% => OK
Preposition: 44.0 30.3222958057 145% => OK
Nominalization: 22.0 5.01324503311 439% => Less nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1892.0 1373.03311258 138% => OK
No of words: 363.0 270.72406181 134% => OK
Chars per words: 5.21212121212 5.08290768461 103% => OK
Fourth root words length: 4.3649236973 4.04702891845 108% => OK
Word Length SD: 2.64621164711 2.5805825403 103% => OK
Unique words: 166.0 145.348785872 114% => OK
Unique words percentage: 0.457300275482 0.540411800872 85% => More unique words wanted or less content wanted.
syllable_count: 591.3 419.366225166 141% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 3.25607064018 0% => OK
Article: 13.0 8.23620309051 158% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 30.0 21.2450331126 141% => The Avg. Sentence Length is relatively long.
Sentence length SD: 48.6417601792 49.2860985944 99% => OK
Chars per sentence: 157.666666667 110.228320801 143% => OK
Words per sentence: 30.25 21.698381199 139% => OK
Discourse Markers: 10.25 7.06452816374 145% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
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: 0.42383503921 0.272083759551 156% => OK
Sentence topic coherence: 0.177818805999 0.0996497079465 178% => OK
Sentence topic coherence SD: 0.0591578682537 0.0662205650399 89% => OK
Paragraph topic coherence: 0.236711302889 0.162205337803 146% => OK
Paragraph topic coherence SD: 0.0719925687441 0.0443174109184 162% => OK
Essay readability:
automated_readability_index: 18.2 13.3589403974 136% => OK
flesch_reading_ease: 41.03 53.8541721854 76% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 15.0 11.0289183223 136% => OK
coleman_liau_index: 13.53 12.2367328918 111% => OK
dale_chall_readability_score: 8.87 8.42419426049 105% => OK
difficult_words: 86.0 63.6247240618 135% => OK
linsear_write_formula: 15.0 10.7273730684 140% => OK
gunning_fog: 14.0 10.498013245 133% => OK
text_standard: 15.0 11.2008830022 134% => 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.