the sea otter population's decline
The reading and the lecture are both about the sea otter population's decline. The author of the article believes that the pollution hypothesis explains this phenomenon better than the predator hypothesis and then provides three reasons to support his claim. In contrast, the lecturer states that the results of the ongoing investigations have shown that attacks by predators are the most likely cause of the sea otter population's decline.
To begin with, according to the reading, the water samples have shown that there is an increase in levels of chemicals that can cause sea otter's death. However, the speaker mentions that the pollution theory does not seem right since no one can find dead sea otters washed up on Alaska beaches. But, the predator theory looks consistent with the mentioned point, as predators eat the sea otters, and because of that, there are no washed-up sea otters on beaches.
Secondly, the author suggests that environmental pollution decreases the population of seals and sea lions as well since environmental pollutants affect the entire ecosystem, not just one species. This specific argument is challenged by the lecturer. She states that whales have disappeared as a result of human hunters. Hence, the orcas have been forced to change their diets from eating whales to smaller mammals such as seals, sea lions, and sea otters. As a result, orcas are the main reason for the sea otter population decline.
Finally, the otter states that the pollution hypothesis explains the uneven pattern of decline because there is an uneven concentration of pollutants along the coast. However, the professor points out that the uneven decline of population in sea otters depends on the fact that whether orcas live in that location or not. In addition, she mentions that the shallow and rocky locations, which are not easily accessible to orcas, don't show any decline in sea otter population to prove her point.
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Grammar and spelling errors:
Line 3, column 139, Rule ID: POSSESIVE_APOSTROPHE[2]
Message: Possible typo: apostrophe is missing. Did you mean 'otters'' or 'otter's'?
Suggestion: otters'; otter's
... levels of chemicals that can cause sea otters death. However, the speaker mentions th...
^^^^^^
Line 7, column 429, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: don't
...ich are not easily accessible to orcas, dont show any decline in sea otter populatio...
^^^^
Transition Words or Phrases used:
but, finally, hence, however, if, look, second, secondly, so, then, well, in addition, in contrast, such as, as a result, to begin with
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 9.0 10.4613686534 86% => OK
Auxiliary verbs: 2.0 5.04856512141 40% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 15.0 12.0772626932 124% => OK
Pronoun: 21.0 22.412803532 94% => OK
Preposition: 38.0 30.3222958057 125% => OK
Nominalization: 12.0 5.01324503311 239% => Less nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1628.0 1373.03311258 119% => OK
No of words: 316.0 270.72406181 117% => OK
Chars per words: 5.15189873418 5.08290768461 101% => OK
Fourth root words length: 4.21620550194 4.04702891845 104% => OK
Word Length SD: 2.58178978995 2.5805825403 100% => OK
Unique words: 167.0 145.348785872 115% => OK
Unique words percentage: 0.528481012658 0.540411800872 98% => OK
syllable_count: 499.5 419.366225166 119% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 3.0 3.25607064018 92% => OK
Article: 10.0 8.23620309051 121% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 22.0 21.2450331126 104% => OK
Sentence length SD: 45.9080714081 49.2860985944 93% => OK
Chars per sentence: 116.285714286 110.228320801 105% => OK
Words per sentence: 22.5714285714 21.698381199 104% => OK
Discourse Markers: 9.64285714286 7.06452816374 136% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 2.0 4.33554083885 46% => More positive sentences wanted.
Sentences with negative sentiment : 8.0 4.45695364238 179% => OK
Sentences with neutral sentiment: 4.0 4.27373068433 94% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.491932606191 0.272083759551 181% => OK
Sentence topic coherence: 0.180669338034 0.0996497079465 181% => OK
Sentence topic coherence SD: 0.13196278121 0.0662205650399 199% => OK
Paragraph topic coherence: 0.297085424558 0.162205337803 183% => OK
Paragraph topic coherence SD: 0.0840721078295 0.0443174109184 190% => OK
Essay readability:
automated_readability_index: 14.1 13.3589403974 106% => OK
flesch_reading_ease: 49.15 53.8541721854 91% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 11.9 11.0289183223 108% => OK
coleman_liau_index: 12.89 12.2367328918 105% => OK
dale_chall_readability_score: 8.73 8.42419426049 104% => OK
difficult_words: 80.0 63.6247240618 126% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 10.8 10.498013245 103% => OK
text_standard: 11.0 11.2008830022 98% => OK
What are above readability scores?
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Rates: 85.0 out of 100
Scores by essay e-grader: 25.5 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.