Do whales use stars to navigate?
The text and the lecture offer two opposing view on whether humpback whales use stars to navigate or not. While the text lists reasons to whales ability to find their migration path by stars, the professor repudiates the given causes, though describing the whales' ability to migrate as attractive.
First, the author mentions whales' brain power as a cause for their ability to navigate by stars. However, the lecturer refutes any connection between whales' intelligence and using stars as hints in navigating. The professor adds that some birds, e.g. ducks, navigate through stars, though it is agreed upon by the scientists that ducks are not such intelligent. Therefore, an animal's navigating by stars has no significant connection with its brain power.
Next, the reading passage claims that whales navigate by stars because they follow a straight line while migrating. On the other hand, the professor casts doubt on this argument by saying that whales can implement earth's magnetic field to find their routes. According to the professor, when an animal migrates following a straight line, it definitely uses some external factor to get hints, but, the point is that, the external agent can be earth's magnetic field. Whales have a part in their brains, called "bio-magnetite", which function is to sense the earth's magnetic field. Thus, it is probable that the whales use this ability to find their path.
Finally, the passage argues that whales coming to the water surface, and staying for a long period, called ''spy-hopping", is a sign of their using of stars to navigate. On the contrary, the lecturer declares that there is no relation between spy-hopping and using stars to navigate. According to the lecturer, there are another animals such as sharks that has habit of spy-hopping. May be the animals do so in order to find their prays.
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Grammar and spelling errors:
Line 1, column 139, Rule ID: TO_NON_BASE[1]
Message: The verb after "to" should be in the base form: 'whale'.
Suggestion: whale
...or not. While the text lists reasons to whales ability to find their migration path by...
^^^^^^
Line 2, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...ales ability to migrate as attractive. First, the author mentions whales brain ...
^^^^^
Line 2, column 378, Rule ID: A_PLURAL[1]
Message: Don't use indefinite articles with plural words. Did you mean 'an animal' or simply 'animals'?
Suggestion: an animal; animals
...ks are not such intelligent. Therefore, an animals navigating by stars has no significant ...
^^^^^^^^^^
Line 3, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...icant connection with its brain power. Next, the reading passage claims that wh...
^^^^^
Line 4, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...s use this ability to find their path. Finally, the passage argues that whales ...
^^^^^
Line 4, column 395, Rule ID: HE_VERB_AGR[8]
Message: The proper name in singular (May) must be used with a third-person verb: 'is'.
Suggestion: is
...arks that has habit of spy-hopping. May be the animals do so in order to find thei...
^^
Transition Words or Phrases used:
but, e.g., finally, first, however, if, may, so, therefore, thus, while, such as, on the contrary, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 10.0 10.4613686534 96% => OK
Auxiliary verbs: 3.0 5.04856512141 59% => OK
Conjunction : 5.0 7.30242825607 68% => OK
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 23.0 22.412803532 103% => OK
Preposition: 36.0 30.3222958057 119% => OK
Nominalization: 8.0 5.01324503311 160% => OK
Performance on vocabulary words:
No of characters: 1559.0 1373.03311258 114% => OK
No of words: 304.0 270.72406181 112% => OK
Chars per words: 5.12828947368 5.08290768461 101% => OK
Fourth root words length: 4.17559525986 4.04702891845 103% => OK
Word Length SD: 2.86047116286 2.5805825403 111% => OK
Unique words: 164.0 145.348785872 113% => OK
Unique words percentage: 0.539473684211 0.540411800872 100% => OK
syllable_count: 469.8 419.366225166 112% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 12.0 8.23620309051 146% => OK
Subordination: 4.0 1.25165562914 320% => Less adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 15.0 13.0662251656 115% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 40.8088225755 49.2860985944 83% => OK
Chars per sentence: 103.933333333 110.228320801 94% => OK
Words per sentence: 20.2666666667 21.698381199 93% => OK
Discourse Markers: 7.73333333333 7.06452816374 109% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 6.0 4.19205298013 143% => OK
Sentences with positive sentiment : 7.0 4.33554083885 161% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.408264586665 0.272083759551 150% => OK
Sentence topic coherence: 0.13740524924 0.0996497079465 138% => OK
Sentence topic coherence SD: 0.0902174237853 0.0662205650399 136% => OK
Paragraph topic coherence: 0.251102899017 0.162205337803 155% => OK
Paragraph topic coherence SD: 0.0383765812388 0.0443174109184 87% => OK
Essay readability:
automated_readability_index: 12.9 13.3589403974 97% => OK
flesch_reading_ease: 59.64 53.8541721854 111% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 12.47 12.2367328918 102% => OK
dale_chall_readability_score: 7.9 8.42419426049 94% => OK
difficult_words: 63.0 63.6247240618 99% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?
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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.