According to the passage, there are three theories which explain how agnostids behaved. However, the professor casts doubt on each of the theories and rejects them by providing some highlighted reasons which will be mentioned in the following paragraphs.
First, the reading states that agnostids were free-swimming predator like other types of primitive arthropods. Conversely, the lecturer refuses this idea by asserting that all of those anthropods which were predator had big eyes. Also, he adds that agnostid had tiny eyes even some of them were blind, therefore, they were not able to be a predator. Besides, there is no evidence that they have another ability instead of the vision for being a predator.
Second, the author declares that they supposedly have dwelled on the seafloor by consuming dead organisms and bacteria. On the contrast, the speaker implies that animals on the seafloor move slowly and they just stay in the small area. The evidence indicates that agnostids had the ability to move long distance. Also, their fossils were found in area large a, not in small local, thus, this theory is not accurate.
Third, the writer mentions that agnostids perpetually were parasites which live on larger organisms. In the opposition, the professor clarifies that parasites have a small population but the agnostics had a very large population, as a result, they could not be parasites.
In conclusion, the professor claims that the theories which are pointed by the author have some weaknesses, hence, they are not valid.
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Grammar and spelling errors:
Line 4, column 358, Rule ID: THE_PUNCT[1]
Message: Did you forget something after 'a'?
... their fossils were found in area large a, not in small local, thus, this theory i...
^^
Transition Words or Phrases used:
also, besides, but, conversely, first, hence, however, if, second, so, therefore, third, thus, well, even so, in conclusion, as a result
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 15.0 10.4613686534 143% => OK
Auxiliary verbs: 2.0 5.04856512141 40% => OK
Conjunction : 4.0 7.30242825607 55% => More conjunction wanted.
Relative clauses : 15.0 12.0772626932 124% => OK
Pronoun: 23.0 22.412803532 103% => OK
Preposition: 24.0 30.3222958057 79% => OK
Nominalization: 6.0 5.01324503311 120% => OK
Performance on vocabulary words:
No of characters: 1295.0 1373.03311258 94% => OK
No of words: 248.0 270.72406181 92% => More content wanted.
Chars per words: 5.22177419355 5.08290768461 103% => OK
Fourth root words length: 3.96837696647 4.04702891845 98% => OK
Word Length SD: 2.67065495578 2.5805825403 103% => OK
Unique words: 141.0 145.348785872 97% => OK
Unique words percentage: 0.568548387097 0.540411800872 105% => OK
syllable_count: 400.5 419.366225166 96% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 3.25607064018 184% => OK
Article: 9.0 8.23620309051 109% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 13.0 13.0662251656 99% => OK
Sentence length: 19.0 21.2450331126 89% => OK
Sentence length SD: 26.0545626846 49.2860985944 53% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 99.6153846154 110.228320801 90% => OK
Words per sentence: 19.0769230769 21.698381199 88% => OK
Discourse Markers: 10.4615384615 7.06452816374 148% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => 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: 0.377319545666 0.272083759551 139% => OK
Sentence topic coherence: 0.132031962507 0.0996497079465 132% => OK
Sentence topic coherence SD: 0.0770163701039 0.0662205650399 116% => OK
Paragraph topic coherence: 0.188635928351 0.162205337803 116% => OK
Paragraph topic coherence SD: 0.0858806476769 0.0443174109184 194% => OK
Essay readability:
automated_readability_index: 12.7 13.3589403974 95% => OK
flesch_reading_ease: 52.19 53.8541721854 97% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 10.7 11.0289183223 97% => OK
coleman_liau_index: 13.0 12.2367328918 106% => OK
dale_chall_readability_score: 8.91 8.42419426049 106% => OK
difficult_words: 68.0 63.6247240618 107% => OK
linsear_write_formula: 7.5 10.7273730684 70% => OK
gunning_fog: 9.6 10.498013245 91% => OK
text_standard: 13.0 11.2008830022 116% => OK
What are above readability scores?
---------------------
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.