Humans arrived in the Kaliko Islands about 7,000 years ago, and within 3,000 years most of the large mammal species that had lived in the forests of the Kaliko Islands were extinct. Previous archaeological findings have suggested that early humans generally relied on both fishing and hunting for food; since archaeologists have discovered numerous sites in the Kaliko Islands where the bones of fish were discarded, it is likely that the humans also hunted the mammals. Furthermore, researchers have uncovered simple tools, such as stone knives, that could be used for hunting. The only clear explanation is that humans caused the extinction of the various mammal species through excessive hunting.
Write a response in which you discuss one or more alternative explanations that could rival the proposed explanation and explain how your explanation(s) can plausibly account for the facts presented in the argument.
In this argument, we are informed that after human's habitant 7,000 years ago, most of the large mammal species that had lived in the forests of this island gradually reached extinction. Citing by the archaeological discoveries, such as fish bones as well as simple tools like stone knives, the author simply ascribes such extinction to human's excessive hunting behavior. Quite convincing though such explanation seems, we can not safely states that it is the unique reason that account for the facts presented in the passage. therefore, we have to pore over other explanations, which could rival with the one proposed in this argument.
To start off, the author attribute the discarded fish bone to human fishing. while human fishing activities might well result in such leftover and following mammal extermination, the probabilities that other factors might play couldn't be simply ruled out. First of all, it is possible that fish bone remains could trace back to the period when human residents is still rare, even non-existence. if this is the case, human fishing could not take charge of fish bone leftover and further decline of mammal species. following this path, it's likely that fish bone remains might be explained as stemming from natural death and deposit on the sites. Second, while human habitant actually correspond with fishing habitant in the same time period, there is no clues to say that other reason could lead to fish bones. For example, other mammal animal mights catch and eat fish as well, therefore contributed to the following mammal species' disappearance. if this is the case, people might not live on fish hunting and thus the underline logic would be also weakened, namely: if people relies on fishing hunting, they could also have a strong dependence on hunting other mammal animals.
Admittedly, the uncovered simple tools, such as stone knives, might lend great support to the explanation that annihilation of mammal animals could be originated from the human hunting. However, such tools could be not only utilized for the stated purpose, but also served for other usages. For example, people might use them for daily live's recording, or they are used for decoration purpose. Moreover, such tools might be used for protection against other animals' attack. without sufficient information, we can not decide which explanation could play the major role for the discovered tools. Furthermore, all of aforementioned factors might be conspired to the discovery of tools.
Finally, while we admit that both fish bone remains and simple tools discovered might prove the crucial role of human hunting during the extermination process, it's still too hasty to draw a conclusion that other factors' influence could be effaced easily. For example, a harsh climate weather that exceeds adaptation ability of mammal species, a gradually scare food resource on which mammal species relies on, certain catastrophe which attacks the island by accident, all of factors might trigger or accelerate the annihilation of mammal species. without further information, each of them might stay on a valid ground and could not be eliminated from candidates list of reasons.
To sum up, while human activities might have exerted great influence on nature, in the absence of concrete information, we could not hastily rule out the probabilities out of other factors. Before plumb investigation, the mammal extermination is such a case that could be attributable to several explanations mentioned above that equally account for the facts presented in the argument.
Comments
Essay evaluation report
Attribute Value Ideal
Final score: 3.0 out of 6
Category: Satisfactory Excellent
No. of Grammatical Errors: 0 2
No. of Spelling Errors: 0 2
No. of Sentences: 16 15
No. of Words: 571 350
No. of Characters: 2932 1500
No. of Different Words: 256 200
Fourth Root of Number of Words: 4.888 4.7
Average Word Length: 5.135 4.6
Word Length SD: 2.612 2.4
No. of Words greater than 5 chars: 210 100
No. of Words greater than 6 chars: 154 80
No. of Words greater than 7 chars: 87 40
No. of Words greater than 8 chars: 66 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 35.688 21.0
Sentence Length SD: 15.972 7.5
Use of Discourse Markers (%): 0.875 0.12
Sentence-Text Coherence: 0.378 0.35
Sentence-Para Coherence: 0.612 0.50
Sentence-Sentence Coherence: 0.178 0.07
Number of Paragraphs: 5 5
Grammar and spelling errors:
Line 1, column 438, Rule ID: DID_BASEFORM[3]
Message: The verb 'can' requires base form of the verb: 'state'
Suggestion: state
...ch explanation seems, we can not safely states that it is the unique reason that accou...
^^^^^^
Line 1, column 527, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Therefore
...for the facts presented in the passage. therefore, we have to pore over other explanation...
^^^^^^^^^
Line 5, column 78, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: While
...e discarded fish bone to human fishing. while human fishing activities might well res...
^^^^^
Line 5, column 228, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: couldn't
...abilities that other factors might play couldnt be simply ruled out. First of all, it i...
^^^^^^^
Line 5, column 396, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: If
...ents is still rare, even non-existence. if this is the case, human fishing could n...
^^
Line 5, column 514, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Following
... and further decline of mammal species. following this path, its likely that fish bone re...
^^^^^^^^^
Line 5, column 741, Rule ID: THERE_S_MANY[4]
Message: Did you mean 'there are no clues'?
Suggestion: there are no clues
...shing habitant in the same time period, there is no clues to say that other reason could lead to ...
^^^^^^^^^^^^^^^^^
Line 5, column 947, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: If
...following mammal species disappearance. if this is the case, people might not live...
^^
Line 9, column 475, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Without
...rotection against other animals attack. without sufficient information, we can not deci...
^^^^^^^
Line 13, column 344, Rule ID: A_RB_NN[1]
Message: You used an adverb ('gradually') instead an adjective, or a noun ('scare') instead of another adjective.
...s adaptation ability of mammal species, a gradually scare food resource on which mammal species r...
^^^^^^^^^^^^^^^^^
Line 13, column 548, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Without
...ate the annihilation of mammal species. without further information, each of them might...
^^^^^^^
Transition Words or Phrases used:
actually, also, but, finally, first, furthermore, however, if, moreover, second, so, still, therefore, thus, well, while, for example, such as, as well as, first of all, to sum up
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 19.0 19.6327345309 97% => OK
Auxiliary verbs: 27.0 12.9520958084 208% => Less auxiliary verb wanted.
Conjunction : 10.0 11.1786427146 89% => OK
Relative clauses : 19.0 13.6137724551 140% => OK
Pronoun: 34.0 28.8173652695 118% => OK
Preposition: 65.0 55.5748502994 117% => OK
Nominalization: 26.0 16.3942115768 159% => OK
Performance on vocabulary words:
No of characters: 3016.0 2260.96107784 133% => OK
No of words: 570.0 441.139720559 129% => OK
Chars per words: 5.29122807018 5.12650576532 103% => OK
Fourth root words length: 4.88617158649 4.56307096286 107% => OK
Word Length SD: 2.71145217821 2.78398813304 97% => OK
Unique words: 274.0 204.123752495 134% => OK
Unique words percentage: 0.480701754386 0.468620217663 103% => OK
syllable_count: 929.7 705.55239521 132% => OK
avg_syllables_per_word: 1.6 1.59920159681 100% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 9.0 4.96107784431 181% => OK
Article: 7.0 8.76447105788 80% => OK
Subordination: 7.0 2.70958083832 258% => Less adverbial clause wanted.
Conjunction: 2.0 1.67365269461 119% => OK
Preposition: 7.0 4.22255489022 166% => OK
Performance on sentences:
How many sentences: 23.0 19.7664670659 116% => OK
Sentence length: 24.0 22.8473053892 105% => OK
Sentence length SD: 54.6150993199 57.8364921388 94% => OK
Chars per sentence: 131.130434783 119.503703932 110% => OK
Words per sentence: 24.7826086957 23.324526521 106% => OK
Discourse Markers: 7.78260869565 5.70786347227 136% => OK
Paragraphs: 5.0 5.15768463074 97% => OK
Language errors: 11.0 5.25449101796 209% => Less language errors wanted.
Sentences with positive sentiment : 9.0 8.20758483034 110% => OK
Sentences with negative sentiment : 8.0 6.88822355289 116% => OK
Sentences with neutral sentiment: 6.0 4.67664670659 128% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.133213552272 0.218282227539 61% => OK
Sentence topic coherence: 0.0456756057168 0.0743258471296 61% => OK
Sentence topic coherence SD: 0.0717275533897 0.0701772020484 102% => OK
Paragraph topic coherence: 0.0883376281739 0.128457276422 69% => OK
Paragraph topic coherence SD: 0.0681312438822 0.0628817314937 108% => OK
Essay readability:
automated_readability_index: 15.9 14.3799401198 111% => OK
flesch_reading_ease: 47.12 48.3550499002 97% => OK
smog_index: 8.8 7.1628742515 123% => OK
flesch_kincaid_grade: 12.7 12.197005988 104% => OK
coleman_liau_index: 13.7 12.5979740519 109% => OK
dale_chall_readability_score: 8.62 8.32208582834 104% => OK
difficult_words: 137.0 98.500998004 139% => OK
linsear_write_formula: 13.5 12.3882235529 109% => OK
gunning_fog: 11.6 11.1389221557 104% => OK
text_standard: 14.0 11.9071856287 118% => OK
What are above readability scores?
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Rates: 66.67 out of 100
Scores by essay e-grader: 4.0 Out of 6
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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.