THE SEA OTTER
The lecture completely refutes the passage. It is said in the lecture that predators are the cause of the decreased number of the otter population in a coast of Alaska. Pollution is not the main reason for this problem as the passage says.
The passage points out that, pollution is main factor that changed the population of otters adversely. However, the speaker says that researches have shown that the predatory hypothesis is true. If the pollution was the cause, then infection would kill all the otters, but otter population just decreased, which means a predator ate some otters.
Contrary to the belief in the passage that, pollution is the main reason to the decreased number of sea mammals such as otters and seals. It is said in the lecture, that humans caused disappearance of whales. Because the orcas can not find whales to eat, they possibly started to eat the small mammals like otters and seals.
Lastly, the passage says that in some areas the otter population remained stable which is explained by ocean currents or other factors. However, the lecture says that the orcas can easily hunt on the coastal side, but they cannot go to rocky places where other otters live. So, it causes a fluctuation in the decrease of otter population.
Transition Words or Phrases used:
but, however, if, lastly, so, then, in fact, such as
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 9.0 10.4613686534 86% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 5.0 7.30242825607 68% => OK
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 15.0 22.412803532 67% => OK
Preposition: 22.0 30.3222958057 73% => OK
Nominalization: 12.0 5.01324503311 239% => Less nominalization wanted.
Performance on vocabulary words:
No of characters: 1052.0 1373.03311258 77% => OK
No of words: 214.0 270.72406181 79% => More content wanted.
Chars per words: 4.91588785047 5.08290768461 97% => OK
Fourth root words length: 3.82475343497 4.04702891845 95% => OK
Word Length SD: 2.45767739573 2.5805825403 95% => OK
Unique words: 117.0 145.348785872 80% => OK
Unique words percentage: 0.546728971963 0.540411800872 101% => OK
syllable_count: 324.9 419.366225166 77% => 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% => Less pronouns wanted as sentence beginning.
Interrogative: 0.0 0.116997792494 0% => OK
Article: 5.0 8.23620309051 61% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 0.0 2.5761589404 0% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 17.0 21.2450331126 80% => OK
Sentence length SD: 33.6324083124 49.2860985944 68% => OK
Chars per sentence: 87.6666666667 110.228320801 80% => OK
Words per sentence: 17.8333333333 21.698381199 82% => OK
Discourse Markers: 4.33333333333 7.06452816374 61% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 6.0 4.33554083885 138% => OK
Sentences with negative sentiment : 3.0 4.45695364238 67% => OK
Sentences with neutral sentiment: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.282501292805 0.272083759551 104% => OK
Sentence topic coherence: 0.0929398806142 0.0996497079465 93% => OK
Sentence topic coherence SD: 0.0812418975295 0.0662205650399 123% => OK
Paragraph topic coherence: 0.157622513421 0.162205337803 97% => OK
Paragraph topic coherence SD: 0.058200310927 0.0443174109184 131% => OK
Essay readability:
automated_readability_index: 10.7 13.3589403974 80% => Automated_readability_index is low.
flesch_reading_ease: 62.68 53.8541721854 116% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 8.7 11.0289183223 79% => Flesch kincaid grade is low.
coleman_liau_index: 10.96 12.2367328918 90% => OK
dale_chall_readability_score: 8.32 8.42419426049 99% => OK
difficult_words: 52.0 63.6247240618 82% => More difficult words wanted.
linsear_write_formula: 8.5 10.7273730684 79% => Linsear_write_formula is low.
gunning_fog: 8.8 10.498013245 84% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?
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Rates: 75.0 out of 100
Scores by essay e-grader: 22.5 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.