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20160701
【43-02】科技 Mutualism
【Speaker 1】
The speaker talks about that some animals’ saliva can prevent the production of the plants’ toxins. And then she detailedly explains how the whole progress completes.
【Time 2】
The passage tells the definition of “mutualism”, which is the way two organisms of different species have a relationship in which each individual benefits. And then, an example is given to explain this kind of relationship. Moreover, mutualism plays a key part in ecology.
【Time 3】
The passage is about the interdependence of ants, elephants and acacia trees.
【Time 4】
And the author comments on this research result both pros and cons.
Time 2  00:03:10
Time 3  00:03:40
Time 4  00:01:25
Time 5  00:02:50
Time 6  00:02:01
Paraphrase 7  00:08:32 |
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