In recent years, many frog species around the world have declined in numbers or even gone extinct due to changes in their environment. These drops in population and widespread extinction events have serious consequences for the ecosystems in which frogs live; for example, frogs help play a role in protecting humans by eating disease-carrying insects. Several methods have been proposed to solve the problem of declining frog populations.
First, if laws prohibited farmers from using harmful pesticides near sensitive frog populations, it would significantly reduce the harm those pesticides cause to these creatures. Frogs are being harmed by these chemicals used to prevent insects from damaging farm crops such as corn and sugarcane. Pesticides often spread from farmland into neighboring frog habitats. Once pesticides enter a frog’s body, they attack the nervous system, leading to severe breathing problems.
A second major factor in the reduction of frog populations is a fungus that has spread around the world with deadly effect. The fungus causes thickening of the skin, and since frogs use their skin to absorb water, infected frogs die of dehydration, which is a lack of sufficient water. Recently, researchers have discovered several ways to treat or prevent infection, including antifungal medication and treatments that kill the fungus with heat. Therefore, if anti-fungal treatments, are applied on a large scale, they would protect sensitive frog populations from infection.
Third, in a great many cases, frog populations are disappearing simply because their natural habitats are threatened. Since most frog species lay their eggs in water, they are dependent on water and wetlands, such as marshes. Many such habitats are threatened by human activities, including excessive water use or the draining of wetlands to make them suitable for development. Thus, if key water habitats, such as lakes and marshes, were better protected from excessive water use and development, many frog species would recover.
the lecture, the professor discusses how the main cause of Steller’s sea cow’s extinction is unclear and how each of the stated theories has limitations. This casts doubt on the reading asserts that one of the three theories are the main cause of sea cow’s disappearance.
To begin with, the professor states that sea cows were massive about nine-meter-long and weigh ten ton; thus, a couple of sea cow would have fed the whole village. Moreover, the population of Siberian were small. Therefore, The Steller sew cow would not have been overhunted by Siberian people. This contradicts the text which claims that overfishing by native people could have been the main cause.
In addition, the lecturer argues that if a sever ecosystem disturbance really occurred then that would have affected the other marine animals such as wheels. In fact, fishing ships didn’t report any decline in wheels number. Furthermore, kelp plants were growing just fine and sea cows didn’t experience food shortage. This opposes the article which asserts that kelp population responded negatively to a number of ecological changes that could have led to the disappearance of sea cows.
Finally, the speaker explains why European fur traders could not have been the main cause. In fact, hundred of years ago the sea cows’ number were already less than it was in the 17th century. Moreover, the European fur traders came to the island after 1741. Hence, there was already ongoing reason that is responsible for sea cow’s extinction. This refutes the text which states that European would have killed sea cows to use their fur.
In conclusion, the speaker disagrees with the reading on all three points, and believes the text lacks credibility.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2019-07-30 | shadensaud4 | 35 | view |
| 2019-07-25 | shadensaud4 | 81 | view |
| 2019-07-25 | shadensaud4 | 3 | view |
- The cane toad is a large (1.8 kg) amphibian species native to Central and South America. It was deliberately introduced to Australia in 1935 with the expectation that it would protect farmers’ crops by eating harmful insects. Unfortunately, the toad mul 80
- The Extinction of the Steller’s Sea CowA huge marine mammal known as the Steller’s sea cow once lived in the waters around Bering Island off the coast of Siberia. It was described in 1741 by George W. Steller, a naturalist who was among the first Euro 85
- Because of climate change more and more land that was once used to grow crops or provide food for animals is turning to dry unusable desert land There are many proposals about how to stop this process known as desertification A number of proposals involve 52
- In recent years, many frog species around the world have declined in numbers or even gone extinct due to changes in their environment. These drops in population and widespread extinction events have serious consequences for the ecosystems in which frogs l 35
- Because of climate change, more and more land that was once used to grow crops or provide food for animals is turning to dry, unusable desert land. There are many proposals about how to stop this process, known as desertification. A number of proposals in 85
Grammar and spelling errors:
Line 1, column 1, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: The
the lecture, the professor discusses how th...
^^^
Line 3, column 401, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... people could have been the main cause. In addition, the lecturer argues that if...
^^^^^^^
Line 6, column 499, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...e led to the disappearance of sea cows. Finally, the speaker explains why Europe...
^^^^^^^
Line 9, column 101, Rule ID: NODT_DOZEN[1]
Message: Use simply: 'a hundred'.
Suggestion: a hundred
... not have been the main cause. In fact, hundred of years ago the sea cows' number ...
^^^^^^^
Line 11, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...e killed sea cows to use their fur. In conclusion, the speaker disagrees wit...
^^
Transition Words or Phrases used:
finally, furthermore, hence, if, moreover, really, so, then, therefore, thus, in addition, in conclusion, in fact, such as, to begin with
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 12.0 10.4613686534 115% => OK
Auxiliary verbs: 7.0 5.04856512141 139% => OK
Conjunction : 4.0 7.30242825607 55% => More conjunction wanted.
Relative clauses : 12.0 12.0772626932 99% => OK
Pronoun: 15.0 22.412803532 67% => OK
Preposition: 28.0 30.3222958057 92% => OK
Nominalization: 9.0 5.01324503311 180% => OK
Performance on vocabulary words:
No of characters: 1489.0 1373.03311258 108% => OK
No of words: 283.0 270.72406181 105% => OK
Chars per words: 5.26148409894 5.08290768461 104% => OK
Fourth root words length: 4.10153676581 4.04702891845 101% => OK
Word Length SD: 2.72304990986 2.5805825403 106% => OK
Unique words: 161.0 145.348785872 111% => OK
Unique words percentage: 0.56890459364 0.540411800872 105% => OK
syllable_count: 439.2 419.366225166 105% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 10.0 8.23620309051 121% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 5.0 2.5761589404 194% => OK
Performance on sentences:
How many sentences: 16.0 13.0662251656 122% => OK
Sentence length: 17.0 21.2450331126 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 36.0847526665 49.2860985944 73% => OK
Chars per sentence: 93.0625 110.228320801 84% => OK
Words per sentence: 17.6875 21.698381199 82% => OK
Discourse Markers: 8.5625 7.06452816374 121% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 5.0 4.19205298013 119% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 6.0 4.45695364238 135% => 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: 0.119073337515 0.272083759551 44% => OK
Sentence topic coherence: 0.043778801118 0.0996497079465 44% => OK
Sentence topic coherence SD: 0.0371866455691 0.0662205650399 56% => OK
Paragraph topic coherence: 0.0618957709761 0.162205337803 38% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.044351198615 0.0443174109184 100% => OK
Essay readability:
automated_readability_index: 12.2 13.3589403974 91% => Automated_readability_index is low.
flesch_reading_ease: 54.22 53.8541721854 101% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 12.93 12.2367328918 106% => OK
dale_chall_readability_score: 8.16 8.42419426049 97% => OK
difficult_words: 66.0 63.6247240618 104% => OK
linsear_write_formula: 8.5 10.7273730684 79% => OK
gunning_fog: 8.8 10.498013245 84% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?
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Rates: 85.0 out of 100
Scores by essay e-grader: 25.5 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.