Using the example of the pronghorn and lion, explain the concept of a relict behavior.
Relict Behavior
In general, animals act in ways that help them to survive within their specific habitats. However, sometimes an animal species may display a behavior that no longer serves a clear purpose. The original purpose for the behavior may have disappeared long ago, even thousands of years before. These behaviors, known as relict behaviors, were useful to the animal when the species' habitat was different: but now, because of changed conditions, the behavior no longer serves its original purpose. Left over from an earlier time, the behavior remains as a relict, or remnant, long after the environmental circumstance that influenced its evolution has vanished.
Submitted by minamina on Sun, 07/31/2016 - 23:06
| Post dates | Users | rates | Contents |
|---|---|---|---|
| 2018-08-09 | Taniazehra | 90.00 | Check this speaking |
| 2018-10-04 | ankitapatel | 90.00 | Check this speaking |
| 2019-10-13 | Seema Modak | 66.00 | Check this speaking |
| 2019-11-06 | Seema Modak | 66.00 | Check this speaking |
| 2018-07-09 | Elena Cristina | 61.00 | Check this speaking |
- Do you prefer having meals at home? 83
- Do you prefer living in the same place or do you like to move around a lot? 70
- Using the examples of mice and rabbits from the lecture, describe the two different types of factors that can cause population changes. 50
- Should people always tell the truth? 80
- Briefly summarize the problem the speakers are discussing. Then state which solution you would recommend. Explain the reasons for your recommendation. 80
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on vocabulary words:
No of characters: 527.0 592.248995984 89% => Need more words or more difficult words.
No of words: 151.0 155.574297189 97% => More words wanted. You may: choose simpler words or speak faster or remove hesitations or remove long pauses, and fully use the time, do NOT save one or two seconds.
Chars per words: 3.49006622517 3.80514564318 92% => OK
Fourth root words length: 3.50545371207 3.525876923 99% => OK
Word Length SD: 1.63515821244 1.79077849142 91% => OK
Unique words: 91.0 93.7148594378 97% => OK
Unique words percentage: 0.602649006623 0.604071249207 100% => OK
Syllable count: 168.3 185.844578313 91% => OK
Avg_syllables_per_word: 1.1 1.19417670683 92% => OK
Performance on coherence:
Topic speech coherence ratio: 0.0 0.0650381309087 0% => It may have issues on recording quality or the content is not so closely related to content.
Acoustic performance on paragraphs:
How many acoustic paragraphs: 4.0 4.35341365462 92% => OK
Average paragraph length: 37.75 68.503853103 55% => OK
STD paragraph length: 34.6076219929 21.3332995233 162% => OK
Average paragraph duration: 13.9525 25.9943957902 54% => OK
STD paragraph duration: 12.3906262453 7.84667146824 158% => OK
Acoustic performance on sentences:
How many acoustic sentences: 28.0 42.0642570281 67% => OK
Average acoustic sentence length: 5.39285714286 4.02192344571 134% => OK
STD acoustic sentence length: 4.12604346728 3.1217529195 132% => OK
Average acoustic sentences duration: 1.90714285714 1.45093177766 131% => OK
STD acoustic sentences duration: 1.29354677739 0.99851816184 130% => OK
Acoustic performance on acoustic silence:(An acoustic silence means a little pause between two or more words)
How many acoustic silence: 22.0 39.0421686747 56% => OK
Total acoustic silence duration: 5.92 7.12997991968 83% => OK
Average acoustic silence duration: 0.269090909091 0.185688545393 145% => Maybe the pauses are too long.
STD acoustic silence duration: 0.173831399269 0.155154303396 112% => OK
Acoustic performance on acoustic words:
Total word duration: 44.46 47.1480722892 94% => OK
Average word duration: 0.294437086093 0.305395592593 96% => OK
STD word duration: 0.173978135802 0.189427763521 92% => OK
Disfluencies: like hesitations, or 'ehn' or taking a long time to pronounce a word:
How many disfluencies: 10.0 7.94979919679 126% => It may have 'ehn' in the speaking, or it has hesitations or overlapping speeches.
Total_disfluencies_duration: 7.22 6.2937751004 115% => OK
Total acoustic noise duration: 3.6 3.39508032129 106% => OK
Acoustic rates:
Total speech duration: 55.81 59.7592369478 93% => Talk more. Do not save time. People can talk 4-5 words in one second.
Compare to expected duration: 0.930166666667 0.995987282463 93% => OK
Rate of silence: 0.394194588783 0.656000678711 60% => OK
Rate of speech: 2.70560831392 2.60215298798 104% => OK
Rate of speech by unique words: 1.63053216269 1.56821927147 104% => OK
Rate of word duration by unique words: 2.04678362573 1.99336655568 103% => OK
Average articulation rates: 0.389812496689 0.317803793328 123% => OK
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Rates: 61.6666666667 out of 100
Scores by speech e-grader: 18.5 Out of 30
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Note: the speech e-grader does NOT examine the meaning of words and ideas.