It is stated in the passage that agnostids were group of marine animals which got extinct about 450 years ago. From the study of the fossil remains, they were taken as the primitive arthropods relatives of modern day insects. It is believed that they live on the basis of three theories with comparisons made with other arthropods. The lecture casts doubt about each theory and pin point the serious weakness in the theories.
Firstly, to be free swimming predators, arthropods have large well developed eyes. As we all know, vision is the best way to chase the predators. However, agnostids had tiny eyes which were poorly developed and sometimes they were completely blind. If eyes were not that factor, they might had other sensory organs, which has not been found in their fossil study. So, this rules out the first theory of their living.
Secondly, agnostids are unlikely to live as sea- floor dwellers. The sea - floor dwellers move slowly and are found in the localized areas only such as a small geographical area of their origin. Whereas agnostids used to move from one place to another fast and they were found in wide areas in multiple geographical areas. Thus, the second theory also failed here.
Thirdly, population of parasites has to be small. If there is large population of parasites, they will kill off the host body. Therefore, agnostids can not be counted as parasites as they were in large population. It is not evident.
In conclusion, from the lecture, we have learnt the loopholes of three theories about agnostids and got further information regarding their way of living.
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Transition Words or Phrases used:
also, first, firstly, however, if, regarding, second, secondly, so, therefore, third, thirdly, thus, well, whereas, as to, in conclusion, such as
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 18.0 10.4613686534 172% => OK
Auxiliary verbs: 3.0 5.04856512141 59% => OK
Conjunction : 5.0 7.30242825607 68% => OK
Relative clauses : 6.0 12.0772626932 50% => More relative clauses wanted.
Pronoun: 20.0 22.412803532 89% => OK
Preposition: 36.0 30.3222958057 119% => OK
Nominalization: 4.0 5.01324503311 80% => OK
Performance on vocabulary words:
No of characters: 1341.0 1373.03311258 98% => OK
No of words: 270.0 270.72406181 100% => OK
Chars per words: 4.96666666667 5.08290768461 98% => OK
Fourth root words length: 4.05360046442 4.04702891845 100% => OK
Word Length SD: 2.50216066541 2.5805825403 97% => OK
Unique words: 156.0 145.348785872 107% => OK
Unique words percentage: 0.577777777778 0.540411800872 107% => OK
syllable_count: 411.3 419.366225166 98% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 8.0 3.25607064018 246% => Less pronouns wanted as sentence beginning.
Article: 3.0 8.23620309051 36% => OK
Subordination: 3.0 1.25165562914 240% => Less adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 18.0 13.0662251656 138% => OK
Sentence length: 15.0 21.2450331126 71% => The Avg. Sentence Length is relatively short.
Sentence length SD: 34.3705300124 49.2860985944 70% => OK
Chars per sentence: 74.5 110.228320801 68% => OK
Words per sentence: 15.0 21.698381199 69% => OK
Discourse Markers: 8.05555555556 7.06452816374 114% => 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 : 6.0 4.45695364238 135% => 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: 0.434045608937 0.272083759551 160% => OK
Sentence topic coherence: 0.115705434417 0.0996497079465 116% => OK
Sentence topic coherence SD: 0.0803959059448 0.0662205650399 121% => OK
Paragraph topic coherence: 0.219436785991 0.162205337803 135% => OK
Paragraph topic coherence SD: 0.0602648704498 0.0443174109184 136% => OK
Essay readability:
automated_readability_index: 9.5 13.3589403974 71% => Automated_readability_index is low.
flesch_reading_ease: 64.71 53.8541721854 120% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 8.0 11.0289183223 73% => OK
coleman_liau_index: 10.95 12.2367328918 89% => OK
dale_chall_readability_score: 8.12 8.42419426049 96% => OK
difficult_words: 64.0 63.6247240618 101% => OK
linsear_write_formula: 8.0 10.7273730684 75% => OK
gunning_fog: 8.0 10.498013245 76% => OK
text_standard: 8.0 11.2008830022 71% => OK
What are above readability scores?
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Rates: 78.3333333333 out of 100
Scores by essay e-grader: 23.5 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.