As seen in the passage, Agnostids were a group of marine animals that went extinct about 450 million years ago. Fossil remains of these animals does not provide requisite information about how the Agnostids behaved and their feeding habits. While the author provides some theories regarding what the Agnostrids ate or about their behavioral patterns and explains them giving reasons, the lecture puts into question the validity of these theories and puts forward explanations to validate their doubts.
First, the author avers that Agnostrids might have been free-swimming predators which preyed on smaller animals based on the fact that other types of primitive arthropods were good-swimmers and active-predators. The validity of this statement is doubted by the professor because free-swimming animals and predators required large eyes and sharp vision. But, the Agnostrids had very tiny eyes and poor vision, while, some others were even blind. If they were able to chase after prey, regardless of the fact that they had poor vision, then, they must have had some other sort of sense organ. But, the presence of other type of sense organ in their bodies is not supported by any fossil remains found till date.
Next, the author advocates the possibility that the Agnostrids must have been seafloor dwellers who survived by feeding on bacteria or as scavengers.In contrast to this point, the lecture states that seafloor dwellers usually had no ability to move fast or to very far distances. Therefore, they were found in localized areas rather than spreading across large distances.But, the evidences found from fossil remains of these animals shows that they had the ability to move fast and were spread across multiple geographic locations. Thus, the statement made in the passage about Agnostrids being seafloor dwellers is nullified by the fact presented in the lecture.
Lastly, in the passage, Agnostrids were assumed to be parasites that lived and fed on large organisms. But, the professor refutes this assumption by saying that the population of parasites living on a host must be limited as large populations can kill a host within a very short period. The fossilized remains of Agnostrids of a particular area are found to consist of large amount of fossilized individuals which in turn indicates that they were not parasites. Thus, the last theory put forward in the passage is also contradicted by the fact presented in the lecture.
Grammar and spelling errors:
Line 5, column 150, Rule ID: SENTENCE_WHITESPACE
Message: Add a space between sentences
Suggestion: In
...by feeding on bacteria or as scavengers.In contrast to this point, the lecture sta...
^^
Line 5, column 372, Rule ID: SENTENCE_WHITESPACE
Message: Add a space between sentences
Suggestion: But
...r than spreading across large distances.But, the evidences found from fossil remain...
^^^
Transition Words or Phrases used:
also, but, first, if, lastly, regarding, so, then, therefore, thus, well, while, in contrast, sort of, in contrast to
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 18.0 10.4613686534 172% => OK
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 12.0 7.30242825607 164% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 27.0 22.412803532 120% => Less pronouns wanted
Preposition: 56.0 30.3222958057 185% => OK
Nominalization: 7.0 5.01324503311 140% => OK
Performance on vocabulary words:
No of characters: 2065.0 1373.03311258 150% => OK
No of words: 395.0 270.72406181 146% => Less content wanted.
Chars per words: 5.22784810127 5.08290768461 103% => OK
Fourth root words length: 4.45809453852 4.04702891845 110% => OK
Word Length SD: 2.7111477392 2.5805825403 105% => OK
Unique words: 198.0 145.348785872 136% => OK
Unique words percentage: 0.501265822785 0.540411800872 93% => More unique words wanted or less content wanted.
syllable_count: 637.2 419.366225166 152% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 12.0 8.23620309051 146% => OK
Subordination: 3.0 1.25165562914 240% => Less adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 15.0 13.0662251656 115% => OK
Sentence length: 26.0 21.2450331126 122% => The Avg. Sentence Length is relatively long.
Sentence length SD: 59.6058908349 49.2860985944 121% => OK
Chars per sentence: 137.666666667 110.228320801 125% => OK
Words per sentence: 26.3333333333 21.698381199 121% => OK
Discourse Markers: 7.8 7.06452816374 110% => 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 : 7.0 4.45695364238 157% => OK
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.320135037246 0.272083759551 118% => OK
Sentence topic coherence: 0.10666182781 0.0996497079465 107% => OK
Sentence topic coherence SD: 0.0700320409573 0.0662205650399 106% => OK
Paragraph topic coherence: 0.174464211825 0.162205337803 108% => OK
Paragraph topic coherence SD: 0.0425045321823 0.0443174109184 96% => OK
Essay readability:
automated_readability_index: 16.4 13.3589403974 123% => OK
flesch_reading_ease: 45.09 53.8541721854 84% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 13.4 11.0289183223 121% => OK
coleman_liau_index: 13.35 12.2367328918 109% => OK
dale_chall_readability_score: 8.76 8.42419426049 104% => OK
difficult_words: 96.0 63.6247240618 151% => OK
linsear_write_formula: 13.5 10.7273730684 126% => OK
gunning_fog: 12.4 10.498013245 118% => OK
text_standard: 14.0 11.2008830022 125% => OK
What are above readability scores?
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Write the essay in 20 minutes.
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.