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 |
|---|---|---|---|
| 2014-04-14 | Ekhlass1980 | 80.00 | Check this speaking |
| 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 |
Speaking category
Speakings by user Ekhlass1980
:
- 16. If you went to study in a different country with a different culture, would you prefer to adapt yourself to the new culture, or concentrate more on maintaining your ownculture? 75
- Q3 80
- 13. Some people like to hurry and get things done as quickly as possible. Others prefer to take their time and get things done at a slower pace. Which do you prefer? 60
- 25. Some people like to spend their leisure time outdoors, while others prefer to spend it indoors. Which do you prefer? 80
- Listening In nature, warm-blooded animals such as mammals and birds need to keep their internal temperatures within a certain range. For most mammals this range is from about 36 to 38 degrees Celsius. Thermoregulation is responsible for maintaining this i 80
24 in 30
Better this time. Don't need a conclusion. More content wanted.