The passage and lecture are both mainly about the mainly possible reason that cause the Steller's sea cow died out. The passage gives three means while the lecture points out that these ways are all relatively unreliable.
To begin with, the passage suggests that the local people in Siberia may hunted sea cow heavily and thus, caused the extinction of the latter. However, the lecture states that the sea cow is a massive creature which could be 10 tons per individual. Hence, those Siberian people cost a little for foods in the total population of sea cow and is not necessarily leading the extinction of them.
Meanwhile, the passage maintains that the kelp, which is the main food of sea cow, may decline significantly after kinds of ecosystem disturbances and then affect the population of the latter. On the other hand, the lecture argues that if this statement is verifiable, some other parts in the ecosystem would also be affected. And in fact, after the ecosystem disturbances, the whales in the same area with the sea cow still maintained a relatively stable quantity. In this case, the sea cow could not decline sharply and get to the point of almost extinction.
Besides, the passage puts forward that the extinction of the sea cow could be happen due to the hurting of European fur traders, which have weapons could cause great number of killings. On the contrary, this is also challenged by the lecture, which points out that those fur traders arrived the living location very late, but the decrease of the population of the sea cow happened long before, so this is not the main reason for the extinction.
- job application 60
- TPO-40 - Independent Writing Task Some parent offer their school-age children money for each high grade (mark) they get in school Do you think this is a good idea?Use specific reasons and examples to support your answer. 60
- TPO-05 - Independent Writing Task Do you agree or disagree with the following statement?People today spend too much time on personal enjoyment-doing things they like to do-rather than doing things they should do.Use specific reasons and examples to suppo 70
- TPO-07 - Independent Writing Task Do you agree or disagree with the following statement?It is more important for students to understand ideas and concepts than it is for them to learn facts.Use specific reasons and examples to support your answer. 70
- TPO-34 - Integrated Writing Task A huge marine mammal known as Steller’s sea cow once lived in the waters around Bering Island off the coast of Siberia. It was described in 1741 by Georg W. Steller, a naturalist who was among the first Europeans to see 3
Transition Words or Phrases used:
also, besides, but, hence, however, if, may, so, still, then, thus, while, in fact, on the contrary, to begin with, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 11.0 10.4613686534 105% => OK
Auxiliary verbs: 7.0 5.04856512141 139% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 16.0 22.412803532 71% => OK
Preposition: 33.0 30.3222958057 109% => OK
Nominalization: 10.0 5.01324503311 199% => OK
Performance on vocabulary words:
No of characters: 1352.0 1373.03311258 98% => OK
No of words: 279.0 270.72406181 103% => OK
Chars per words: 4.8458781362 5.08290768461 95% => OK
Fourth root words length: 4.08696624509 4.04702891845 101% => OK
Word Length SD: 2.51173425792 2.5805825403 97% => OK
Unique words: 143.0 145.348785872 98% => OK
Unique words percentage: 0.512544802867 0.540411800872 95% => More unique words wanted or less content wanted.
syllable_count: 414.9 419.366225166 99% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 9.0 8.23620309051 109% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 5.0 2.5761589404 194% => OK
Performance on sentences:
How many sentences: 11.0 13.0662251656 84% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 25.0 21.2450331126 118% => OK
Sentence length SD: 46.2558461795 49.2860985944 94% => OK
Chars per sentence: 122.909090909 110.228320801 112% => OK
Words per sentence: 25.3636363636 21.698381199 117% => OK
Discourse Markers: 12.0909090909 7.06452816374 171% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 0.0 4.33554083885 0% => More positive sentences wanted.
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 6.0 4.27373068433 140% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.470032119084 0.272083759551 173% => OK
Sentence topic coherence: 0.194674547825 0.0996497079465 195% => OK
Sentence topic coherence SD: 0.0991771416052 0.0662205650399 150% => OK
Paragraph topic coherence: 0.294129165119 0.162205337803 181% => OK
Paragraph topic coherence SD: 0.0636230802958 0.0443174109184 144% => OK
Essay readability:
automated_readability_index: 14.1 13.3589403974 106% => OK
flesch_reading_ease: 54.56 53.8541721854 101% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 11.9 11.0289183223 108% => OK
coleman_liau_index: 11.15 12.2367328918 91% => OK
dale_chall_readability_score: 8.1 8.42419426049 96% => OK
difficult_words: 57.0 63.6247240618 90% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 12.0 10.498013245 114% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
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Rates: 80.0 out of 100
Scores by essay e-grader: 24.0 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.