Sea otter population decline at the Alaskan coast
Both the reading and the lecture are discussing the decline of sea otter population in Alaskan coast. The reading asserts that the population declined is caused by the environmental pollution. However, the lecture opposes the idea of the passage and she believes that the predators are the reason behind the decline of sea otter's population. She offers several reasons for her opinion.
First of all, the reading states that there were known sources of the pollution along the Alaskan coast. The water samples from the area indicates increased levels of chemicals that result in the demise of these animals. This point is rebutted by the lecturer. She mentions that if the chemicals had killed the sea otters, their dead bodies should have been found. The fact that there are no dead bodies found can indicate that predators have eaten the sea otters and the dead bodies cannot be found as a whole.
Secondly, the passage argues that the population of the other sea mamals of that area has also declined. It means that whatever causing the death of the sea otters, is killing the other sea mamals as well. This can be pointed to environmental pollution because it ususally affects the whole ecosystem. The lecturer challenges this idea and she aruges that because the whales are hunted by humans, the orcas that previously used to hunt whales, had to change their diet and they started eating smaller animals like sea otters. Because of this, the sea otter population has decreased.
Finally, the author posists that the pollution hypothesis can explain why at some areas of the coast sea otter population remaned stable, while at others the population declined. The lecturer opposes this claim, she argues that because the orcas can't access the shallow waters and rocky environments, the population of the sea otters remined stable there but at other areas that orcas have access to, they hunted the sea otters.
Grammar and spelling errors:
Line 1, column 324, Rule ID: POSSESIVE_APOSTROPHE[2]
Message: Possible typo: apostrophe is missing. Did you mean 'otters'' or 'otter's'?
Suggestion: otters'; otter's
...re the reason behind the decline of sea otters population. She offers several reasons ...
^^^^^^
Line 7, column 247, Rule ID: CANT[1]
Message: Did you mean 'can't' or 'cannot'?
Suggestion: can't; cannot
...laim, she argues that because the orcas cant access the shallow waters and rocky env...
^^^^
Transition Words or Phrases used:
also, but, finally, first, however, if, second, secondly, so, well, while, first of all
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 11.0 10.4613686534 105% => OK
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 15.0 12.0772626932 124% => OK
Pronoun: 33.0 22.412803532 147% => Less pronouns wanted
Preposition: 29.0 30.3222958057 96% => 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: 1602.0 1373.03311258 117% => OK
No of words: 320.0 270.72406181 118% => OK
Chars per words: 5.00625 5.08290768461 98% => OK
Fourth root words length: 4.22948505376 4.04702891845 105% => OK
Word Length SD: 2.3820208726 2.5805825403 92% => OK
Unique words: 156.0 145.348785872 107% => OK
Unique words percentage: 0.4875 0.540411800872 90% => More unique words wanted or less content wanted.
syllable_count: 500.4 419.366225166 119% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 8.0 3.25607064018 246% => Less pronouns wanted as sentence beginning.
Article: 12.0 8.23620309051 146% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 1.0 2.5761589404 39% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 16.0 13.0662251656 122% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 56.8604376962 49.2860985944 115% => OK
Chars per sentence: 100.125 110.228320801 91% => OK
Words per sentence: 20.0 21.698381199 92% => OK
Discourse Markers: 5.4375 7.06452816374 77% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 8.0 4.27373068433 187% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.430546255265 0.272083759551 158% => OK
Sentence topic coherence: 0.147182446354 0.0996497079465 148% => OK
Sentence topic coherence SD: 0.15170056188 0.0662205650399 229% => The coherence between sentences is low.
Paragraph topic coherence: 0.266641899117 0.162205337803 164% => OK
Paragraph topic coherence SD: 0.117274215542 0.0443174109184 265% => More connections among paragraphs wanted.
Essay readability:
automated_readability_index: 12.2 13.3589403974 91% => Automated_readability_index is low.
flesch_reading_ease: 51.18 53.8541721854 95% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 11.1 11.0289183223 101% => OK
coleman_liau_index: 11.78 12.2367328918 96% => OK
dale_chall_readability_score: 8.48 8.42419426049 101% => OK
difficult_words: 78.0 63.6247240618 123% => OK
linsear_write_formula: 8.0 10.7273730684 75% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
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Rates: 70.0 out of 100
Scores by essay e-grader: 21.0 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.