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.
| Post dates | Users | rates | Contents |
|---|---|---|---|
| 2019-11-07 | shrijan | 80.00 | Check this speaking |
| 2018-04-17 | micro0o0 | 83.00 | Check this speaking |
| 2019-11-06 | Seema Modak | 66.00 | Check this speaking |
| 2019-11-16 | bishoy | 90.00 | Check this speaking |
| 2018-08-19 | mike818 | 50.00 | Check this speaking |
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- Using the example of the lizard from the lecture, explain two benefits of subsurface locomotion. 66
- What should students do in their vacations? 70
- Using the examples of mice and rabbits from the lecture, describe the two different types of factors that can cause population changes. 50
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on vocabulary words:
No of characters: 608.0 592.248995984 103% => OK
No of words: 162.0 155.574297189 104% => OK
Chars per words: 3.75308641975 3.80514564318 99% => OK
Fourth root words length: 3.56762134501 3.525876923 101% => OK
Word Length SD: 1.68164281962 1.79077849142 94% => OK
Unique words: 111.0 93.7148594378 118% => OK
Unique words percentage: 0.685185185185 0.604071249207 113% => OK
Syllable count: 187.2 185.844578313 101% => OK
Avg_syllables_per_word: 1.2 1.19417670683 100% => OK
Performance on coherence:
Topic speech coherence ratio: 0.0346139892025 0.0650381309087 53% => OK
Acoustic performance on paragraphs:
How many acoustic paragraphs: 5.0 4.35341365462 115% => OK
Average paragraph length: 32.4 68.503853103 47% => The average paragraph length is low.
STD paragraph length: 17.9844377171 21.3332995233 84% => OK
Average paragraph duration: 11.506 25.9943957902 44% => OK
STD paragraph duration: 6.38032475662 7.84667146824 81% => OK
Acoustic performance on sentences:
How many acoustic sentences: 34.0 42.0642570281 81% => OK
Average acoustic sentence length: 4.76470588235 4.02192344571 118% => OK
STD acoustic sentence length: 3.29043912258 3.1217529195 105% => OK
Average acoustic sentences duration: 1.63470588235 1.45093177766 113% => OK
STD acoustic sentences duration: 1.10524480997 0.99851816184 111% => OK
Acoustic performance on acoustic silence:(An acoustic silence means a little pause between two or more words)
How many acoustic silence: 32.0 39.0421686747 82% => OK
Total acoustic silence duration: 5.15 7.12997991968 72% => OK
Average acoustic silence duration: 0.1609375 0.185688545393 87% => OK
STD acoustic silence duration: 0.166439917369 0.155154303396 107% => OK
Acoustic performance on acoustic words:
Total word duration: 48.77 47.1480722892 103% => OK
Average word duration: 0.301049382716 0.305395592593 99% => OK
STD word duration: 0.167367445338 0.189427763521 88% => 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: 7.49 6.2937751004 119% => OK
Total acoustic noise duration: 1.62 3.39508032129 48% => OK
Acoustic rates:
Total speech duration: 57.53 59.7592369478 96% => Talk more. Do not save time. People can talk 4-5 words in one second.
Compare to expected duration: 0.958833333333 0.995987282463 96% => OK
Rate of silence: 0.556231531375 0.656000678711 85% => OK
Rate of speech: 2.81592212759 2.60215298798 108% => OK
Rate of speech by unique words: 1.92942812446 1.56821927147 123% => OK
Rate of word duration by unique words: 2.27598933771 1.99336655568 114% => OK
Average articulation rates: 0.227251030864 0.317803793328 72% => OK
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Rates: 90.0 out of 100
Scores by speech e-grader: 27.0 Out of 30
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Note: the speech e-grader does NOT examine the meaning of words and ideas.