The author of the reading and the lecturer both present the underlying reasons the extinction of a mammal known as Stellar's seacow lived around Bering Island off the coast of Siberia. The reading states three possible main couses. Overhunting seacows by group of Siberian people, ecosystem disturbance and the Europian fur traders kill them with weapons. Nevertheless, the lecturer says we do not know the main causes and stays opposite of these three main causes.
First, the reading states that seacows were overhunted by groups of Siberians at that time. The reason is Siberians had wuite large population and they need to hunt many of seacows for living. However, the lecturer says seacows are massive animals with their 9 meter long body and 10 tons of weight. Siberian people was not that large that they would need to hunt a lot of them.
Second, the reading claims that there was ecosystem disturbances because of that Siberians had a decline in their main source of food. In contrast, the lecturer says is something happened in ecosystem that would not be for killing them. There were also other marine animals and there is no report of hunting other animals. Because the animals gwowing well at that time, ecosystem disturbance can not be the main cause of killing seacows.
Third, the reading believes that after 1941, many Europian fur traders came to the island and they killed large number of animals with weapons. However, the lecturer says the population of seacows were already quite small hundred of years before the Europians came. Whatever the main cause, it is not because of the Europian traders.
In conclusion, the reading claims three reasons why seacows in Siberia became extinct. However, the lecturer claims those reasons that reading accept at least one of them, can not be the main causes.
Transition Words or Phrases used:
also, first, however, nevertheless, second, so, third, well, at least, in conclusion, in contrast
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 13.0 10.4613686534 124% => OK
Auxiliary verbs: 6.0 5.04856512141 119% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 10.0 12.0772626932 83% => OK
Pronoun: 23.0 22.412803532 103% => OK
Preposition: 39.0 30.3222958057 129% => OK
Nominalization: 5.0 5.01324503311 100% => OK
Performance on vocabulary words:
No of characters: 1528.0 1373.03311258 111% => OK
No of words: 304.0 270.72406181 112% => OK
Chars per words: 5.02631578947 5.08290768461 99% => OK
Fourth root words length: 4.17559525986 4.04702891845 103% => OK
Word Length SD: 2.36878652151 2.5805825403 92% => OK
Unique words: 149.0 145.348785872 103% => OK
Unique words percentage: 0.490131578947 0.540411800872 91% => More unique words wanted or less content wanted.
syllable_count: 457.2 419.366225166 109% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Article: 12.0 8.23620309051 146% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 17.0 13.0662251656 130% => OK
Sentence length: 17.0 21.2450331126 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 30.4249032946 49.2860985944 62% => OK
Chars per sentence: 89.8823529412 110.228320801 82% => OK
Words per sentence: 17.8823529412 21.698381199 82% => OK
Discourse Markers: 5.70588235294 7.06452816374 81% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 2.0 4.33554083885 46% => More positive sentences wanted.
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 10.0 4.27373068433 234% => Less facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.207878769009 0.272083759551 76% => OK
Sentence topic coherence: 0.0778503507919 0.0996497079465 78% => OK
Sentence topic coherence SD: 0.0324030482155 0.0662205650399 49% => Sentences are similar to each other.
Paragraph topic coherence: 0.12701568778 0.162205337803 78% => OK
Paragraph topic coherence SD: 0.0385647352563 0.0443174109184 87% => OK
Essay readability:
automated_readability_index: 11.2 13.3589403974 84% => 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% => OK
coleman_liau_index: 11.6 12.2367328918 95% => OK
dale_chall_readability_score: 7.23 8.42419426049 86% => OK
difficult_words: 53.0 63.6247240618 83% => More difficult words wanted.
linsear_write_formula: 8.0 10.7273730684 75% => OK
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: 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.