Speaking topics in text
Bioluminescence
Bioluminescence occurs when organisms convert chemical energy into visible light. This happens when a chemical reaction involving oxygen and two other molecules takes place. During this reaction, light of varying colors may be emitted. The great majority of organisms that use bioluminescence are found deep in the oceans depths. This ability to produce light serves a variety of functions. Organisms may use it to do anything from escape their predators to find food.
Online speaking recording
Votes
This speaking topic by users
Post dates | Users | rates | Contents |
---|---|---|---|
2016-03-03 | saramhl | 90.00 | Check this speaking |
2014-04-14 | Ekhlass1980 | 80.00 | Check this speaking |
2013-11-08 | Pinky123 | 85.00 | Check this speaking |
2014-04-14 | Ekhlass1980 | 80.00 | Check this speaking |
Speaking category
Speakings by user Ekhlass1980
:
- Q5 90
- Additional Science Course Requirement As part of the university’s efforts to ensure that undergraduates receive a well-rounded and complete education, all incoming students and current freshman will need to complete one new science course requirement in o 75
- q3 80
- 6. Would you prefer to go on a trip overseas to a new country with a companion youknow, or just by yourself? 80
- q6 10
24 in 30
Better this time. Don't need a conclusion. More content wanted.