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Speaking reference notes: This topic is refereed from another speaking topic, developed by user: ftn
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Speakings by user Ekhlass1980
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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 80
- q6 85
- Evolution in Action When an environment undergoes a dramatic change and no longer provides the conditions necessary for a species to survive, this species must change or face extinction. It has long been held that this change, referred to as evolution, ne 80
- What characteristics do you consider important in a friend? Use specific reasons and examples to support your answer. 60
- Some people prefer to have one long vacation. Other people prefer to have several short vacations. Which do you prefer? Use specific reasons and examples to support your answer. 70
21 in 30
You have issues for the second reason. You develop the first reason very well. think why this happens?