Agnostids were a group of marine animals that became extinct about 450 million years ago. Agnostid fossils can be found in rocks in many areas around the world. From the fossil remains, we know that agnostids were primitive arthropods-relatives of modern-day insects. However, the fossil information does not allow paleontologists to determine with certainty what agnostids ate or how they behaved. There are several different theories about how agnostids may have lived.
Free-Swimming Predators
First, the agnostids may have been free-swimming predators that hunted smaller animals. It is known that other types of primitive arthropods were strong swimmers and active predators, so it is reasonable that the agnostids may have lived that way as well And while the agnostids were small, sometimes just six millimeters long, there were plenty of smaller organisms in the ancient ocean for them to prey on.
Seafloor Dwellers
Second, they may have dwelled on the seafloor. Again, there are examples of other types of primitive arthropods living this way, so it is possible that agnostids did too. On the seafloor they would have survived by scavenging dead organisms or by grazing on bacteria.
Parasites
Third, there is the possibility that the agnostids were parasites, living on and feeding off larger organisms. One reason that this seems possible is that there are many species of modern-day arthropods that exist as parasites, such as fleas, ticks, and mites. The agnostids might have lived on primitive fish or even on other, larger arthropods
The reading and the lecture are both about birds who can not discern between glass and open air. Whereas the author of the reading states that there are several solutions which can use to prevent harms to birds, the lecturer suggests that non of these solutions can stop birds from injuries. The lecturer casts doubt on the main points made in the reading by providing three reasons.
First of all, according to the reading, regular glass is the solution to the problem in a way the glass forms a solid barrier. However, the lecturer disputes this point. He says that these regular glasses have reflection and they reflect act like mirror. Furthermore, he mentions that the birds even do not understand the mirror and when they see the picture of sky or tree in them, they just fly to them.
Secondly, the reading states that buildings' windows could have a design of thin stripes pictured over the glass which help birds see the strips and eschew trying to fly through them. Nevertheless, the lecturer refutes this argument. He argues that birds perceive these openings between strips, for people in the building to see out, as an open whole and through them. In addition, he points out if this solution want to be successful, they should paint stripes extremely small, so this leads to be dark for anyone who is in the building.
Finally, the reading claims that creation an artificial magnetic filed helps to guide birds away from constructions. On the other hand, the lecturer believes that although the birds have a natural ability to sense Earth's magnetic field, they use them only in long distances travel. In fact, birds use Earth's magnetic field when migrate before winter to warm countries. Moreover, he feels that birds use their eyes and brightness of light for going from one side to another side. Therefore, an artificial magnetic filed have no effect on them.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2020-01-24 | jewel | 76 | view |
| 2020-01-03 | jason_linnil | 76 | view |
| 2019-12-20 | jewel | 80 | view |
| 2019-12-04 | shatealabo1110 | 70 | view |
| 2019-11-04 | p0uya | 85 | view |
- Do you agree or disagree with the following statement? For success in a future job, the ability to relate well to people is more important than studying hard in school. Use specific reasons and examples to support your answer. 66
- Over the past two years, the number of shoppers in Central Plaza has been steadily decreasing while the popularity of skateboarding has increased dramatically. Many Central Plaza store owners believe that the decrease in their business is due to the numbe 82
- The following is a memorandum from the business manager of a television station.“Over the past year, our late-night news program has devoted increased time to national news and less time to weather and local news. During this time period, most of the co 72
- If people want to contribute to the society, which of the following is the best way?1- riding bicycle or walking on foot2- recycling the waste3- buying local organic food 76
- People learn things better from those at higher own level than from those at a higher level. 73
Grammar and spelling errors:
Line 9, column 333, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
..., for people in the building to see out, as an open whole and through them. In ad...
^^
Transition Words or Phrases used:
finally, first, furthermore, however, if, moreover, nevertheless, second, secondly, so, therefore, whereas, in addition, in fact, first of all, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 6.0 10.4613686534 57% => More to be verbs wanted.
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 8.0 7.30242825607 110% => OK
Relative clauses : 15.0 12.0772626932 124% => OK
Pronoun: 33.0 22.412803532 147% => Less pronouns wanted
Preposition: 44.0 30.3222958057 145% => OK
Nominalization: 6.0 5.01324503311 120% => OK
Performance on vocabulary words:
No of characters: 1568.0 1373.03311258 114% => OK
No of words: 321.0 270.72406181 119% => OK
Chars per words: 4.88473520249 5.08290768461 96% => OK
Fourth root words length: 4.23278547379 4.04702891845 105% => OK
Word Length SD: 2.35718317824 2.5805825403 91% => OK
Unique words: 179.0 145.348785872 123% => OK
Unique words percentage: 0.557632398754 0.540411800872 103% => OK
syllable_count: 450.9 419.366225166 108% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 8.0 3.25607064018 246% => Less pronouns wanted as sentence beginning.
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: 16.0 13.0662251656 122% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 45.3748278234 49.2860985944 92% => OK
Chars per sentence: 98.0 110.228320801 89% => OK
Words per sentence: 20.0625 21.698381199 92% => OK
Discourse Markers: 10.0625 7.06452816374 142% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 7.0 4.33554083885 161% => OK
Sentences with negative sentiment : 7.0 4.45695364238 157% => OK
Sentences with neutral sentiment: 2.0 4.27373068433 47% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.0 0.272083759551 0% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0 0.0996497079465 0% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0 0.0662205650399 0% => Sentences are similar to each other.
Paragraph topic coherence: 0.0 0.162205337803 0% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0 0.0443174109184 0% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.
Essay readability:
automated_readability_index: 11.6 13.3589403974 87% => Automated_readability_index is low.
flesch_reading_ease: 68.1 53.8541721854 126% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 8.7 11.0289183223 79% => OK
coleman_liau_index: 11.02 12.2367328918 90% => OK
dale_chall_readability_score: 7.48 8.42419426049 89% => OK
difficult_words: 58.0 63.6247240618 91% => OK
linsear_write_formula: 7.5 10.7273730684 70% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 8.0 11.2008830022 71% => OK
What are above readability scores?
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Write the essay in 20 minutes.
It is not exactly right on the topic in the view of e-grader. Maybe there is a wrong essay topic.
Rates: 3.33333333333 out of 100
Scores by essay e-grader: 1.0 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.