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For instance, fossil records suggest bees may have evolved from wasps that gave up hunting after they acquired a taste for nectar.
Original Video：
How bees help plants have sex - Fernanda S. Valdovinos
Key Vocabulary
1. reproduce
reproduce
[ˌriprəˈdus ] (n.)
2. pollinate
pollinate
[ˈpɑləˌneɪt ] (v.)
3. ecosystem
ecosystem
[ˈikoʊˌsɪstəm ] (n.)
4. heterogeneous
heterogeneous
[ˌhɛtərəˈʤinjəs ] (adj.)
5. preference
preference
[ˈprɛfərəns; ˈprɛfrəns] (n.)
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