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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.
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| Post dates | Users | rates | Contents |
|---|---|---|---|
| 2013-11-08 | Pinky123 | 85.00 | Check this speaking |
| 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 |
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- Listening M: Hey Janet. You look a little worried; is anything wrong? W: Well, kind of. I just got a letter telling me I was accepted to my top-choice grad school. M: Uh. . . what’s wrong with that? W: Nothing. It’s really great. Don’t get me wrong. I’m i 80
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- 20. Many universities offer intensive courses during the summer and winter periods.Would you prefer to take an intensive course during the summer or the winter vacationperiod? 70
- 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
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Better this time. Don't need a conclusion. More content wanted.